CN211121164U

CN211121164U - Roughness tester

Info

Publication number: CN211121164U
Application number: CN201921468533.7U
Authority: CN
Inventors: 杨丽
Original assignee: Guangzhou Chinese Test Instrument Co ltd
Current assignee: Guangzhou Chinese Test Instrument Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-07-28
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a roughness tester, including base, pivot angle support arm, lift mount pad and roughness meter, the base includes first base and second base, and first base is the ring form, and the second base upwards extends perpendicularly along first base arc section on first base upper surface, and pivot angle support arm one end upwards articulates perpendicularly on the second base, and pivot angle support arm footpath upwards is equipped with logical groove, leads to the inslot and is equipped with the pole setting, and the lift mount pad is fixed in the pole setting, and roughness meter detachable connects on the lift mount pad. The online measurement of the roughness of the spherical surface of the inner ring of the large-specification spherical plain bearing is realized, the work piece carrying work for measurement is eliminated, and the measurement efficiency is improved. The portable mobile measurement instrument has the advantages of being portable and convenient to carry.

Description

Roughness tester

Technical Field

The utility model relates to a roughness measurement field, in particular to roughness tester.

Background

During the machining process of the surface of the part, machining traces are always left on the machined surface due to vibration of a machine tool and a cutter, unevenness of materials and the like, and the characteristic of the micro-geometry consisting of small intervals and peaks and valleys on the machined surface is called surface roughness. Surface roughness has an effect on the wear resistance, corrosion resistance, sealing properties, fatigue resistance of the part. The surface roughness belongs to an advanced measurement technical scheme and is also an important precondition for the development of the modern mechanical industry. At this stage, the measurement of surface roughness also plays an increasingly greater role.

The spherical surface of the inner ring of the joint bearing is a surface with higher requirements on surface roughness, waviness and geometric accuracy, and the roughness value is not suitable for being evaluated by a comparison method and needs to be measured and evaluated by measuring instrument parameters.

When measuring the surface roughness of a workpiece, the working principle is that the workpiece to be measured is fixed during measurement, a contact pin is controlled to slowly contact the surface of the workpiece to be measured, a needle point is enabled to keep vertical contact with the surface of the workpiece to be measured, the moving direction of the needle point is enabled to be vertical to the processing texture direction of the workpiece to be measured, then an instrument is started to carry out measurement, a precision driving mechanism in the instrument drives a sensor to linearly slide along the surface to be measured at a constant speed, the contact pin moves up and down along with the peak-valley fluctuation of the surface to be measured, the sensor senses the roughness of the surface to be measured through a built-in sharp contact pin, the roughness of the surface to be measured of the workpiece can cause the contact pin to generate displacement, the displacement enables the inductance of an inductance coil of the sensor to change, and accordingly an analog signal proportional to the roughness of the surface to be measured is generated at the output end of a phase sensitive detector, the signal enters a data acquisition system after being amplified and level-converted, a DSP chip performs digital filtering and parameter calculation on the acquired data, and a measurement result is given out on a liquid crystal display.

However, for the measurement of the roughness of the spherical surface of the inner ring of the large-specification spherical plain bearing, a handheld mode is adopted, no instrument is used for placing a reference, and a certain measurement error is caused by the instability of the handheld mode; the measuring platform mesa is too little can't place the joint bearing inner race of big specification, and measuring platform generally makes by the marble, and weight is great, inconvenient transport. The measurement of the roughness of the spherical surface of the inner ring of the large-specification spherical plain bearing is difficult.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a roughness measurement appearance realizes big specification joint bearing inner race sphere roughness measurement, small, light in weight, easily move, and measurement accuracy is high.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides a roughness tester, includes base, pivot angle support arm, lift mount pad and roughness meter, the base includes first base and second base, first base is the ring form, the second base upwards extends perpendicularly along a first base segmental arc on first base upper surface, pivot angle support arm one end upwards articulates perpendicularly on the second base, the pivot angle support arm footpath upwards is equipped with logical groove, it is equipped with the pole setting to lead to the inslot, the lift mount pad is fixed in the pole setting, roughness meter detachable connects on the lift mount pad.

Preferably, the lift mount pad includes backup pad and perpendicular to the backup pad and to the balladeur train that backup pad one side extends, the balladeur train is fixed in the pole setting, be equipped with the locking hand wheel on the balladeur train, be equipped with the mounting groove in the backup pad, the roughness meter passes through the mounting groove is fixed in the backup pad.

Preferably, the inner surface of the second base is provided with a groove, and the lower end of the swing angle supporting arm is accommodated in the groove and hinged with the second base.

Preferably, a circle of anti-slip mat is arranged on the lower surface of the first base.

Preferably, the material of the non-slip mat is polyurethane.

The utility model discloses roughness tester adopts base, pivot angle support arm, lift mount pad and roughness meter, the base includes first base and second base, first base is the ring form, the second base upwards extends perpendicularly along a first base segmental arc on first base upper surface, pivot angle support arm one end upwards articulates perpendicularly on the second base, the pivot angle support arm is upwards equipped with logical groove in the footpath, it is equipped with the pole setting to lead to the inslot, the lift mount pad is fixed in the pole setting, roughness meter detachable connects on the lift mount pad. The online measurement of the roughness of the spherical surface of the inner ring of the large-specification spherical plain bearing is realized, the work piece carrying work for measurement is eliminated, and the measurement efficiency is improved. The portable mobile measurement instrument has the advantages of being portable and convenient to carry.

Drawings

FIG. 1 is a schematic structural view of the roughness tester of the present invention;

FIG. 2 is a schematic structural view of the roughness tester of the present invention after installing the roughness tester therein;

in the figure, 1-base, 11-first base, 12-second base, 121-groove, 2-swing angle supporting arm, 21-first through groove, 22-second through groove, 23-vertical rod, 3-lifting mounting seat, 31-supporting plate, 32-sliding frame, 33-locking hand wheel, 34-mounting groove, 4-roughness meter and 5-measured spherical surface.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, a roughness tester comprises a base 1, a swing angle support arm 2, a lifting mounting seat 3 and a roughness tester 4, wherein the base 1 comprises a first base 11 and a second base 12, the first base 11 is in a circular ring shape, the second base 12 extends upwards vertically on the upper surface of the first base 11 along an arc section of the first base 11, one end of the swing angle support arm 2 is hinged on the second base 12 upwards vertically, a first through groove 21 is arranged at the lower end of the swing angle support arm 2, the swing angle support arm 2 is hinged on the second base 12 through the first through groove 21, a second through groove 22 is arranged on the swing angle support arm 2 in the radial direction, a vertical rod 23 is arranged in the second through groove 22, the lifting mounting seat 3 is fixed on the vertical rod 23, and the roughness tester 4 is detachably connected on the lifting mounting seat 3.

Lift mount pad 3 includes backup pad 31 and perpendicular to backup pad 31 and to the balladeur train 32 that backup pad 31 one side extends, the balladeur train is fixed in pole setting 22 is last, be equipped with locking hand wheel 33 on the balladeur train, be equipped with mounting groove 34 on the backup pad 31, roughness meter 4 passes through mounting groove 34 is fixed in on the backup pad 31. The vertical movement of the carriage 32 on the vertical rod 23 is realized through the locking hand wheel 33, and the height adjustment of the lifting installation seat 3 is realized.

The inner surface of the second base 12 is provided with a groove 121, and the lower end of the swing angle support arm 2 is accommodated in the groove 121 and hinged with the second base 12. The above-mentioned hinge structure can realize the angle adjustment of the swing angle supporting arm 2 relative to the second base 12.

The lower surface of the first base 11 is provided with a circle of anti-skid pads 111. The non-slip mat 111 is made of polyurethane. The non-slip mat 111 has a non-slip surface 5 which is not easily scratched.

The utility model discloses roughness tester's working process as follows:

firstly, holding a roughness meter 4 by hand, installing the roughness meter 4 on a support plate 31 of a lifting installation seat 3, tightening through a bolt (not shown), and placing a base 1 on a measured spherical surface 5;

and then, pressing the base 1 by hand, adjusting the swing angle of the swing angle supporting arm 2 and the height of the lifting mounting seat 3 to enable the roughness meter 4 to touch the measured spherical surface 5 and be tangent to the spherical surface, and fastening and locking the hand wheel 33 to measure.

Finally, after the measurement is completed, the base 1 can be removed and the coarseness gauge 4 can be detached.

The utility model discloses roughness tester adopts base 1, pivot angle support arm 2, lift mount pad 3 and roughness meter 4, base 1 includes first base 11 and second base 12, first base 11 is the ring form, second base 12 upwards extends perpendicularly along 11 segmental arcs of first base on the 11 upper surfaces of first base, 2 one ends of pivot angle support arm upwards articulate perpendicularly on second base 12, 2 radial logical grooves 21 that are equipped with of pivot angle support arm, it is equipped with pole setting 23 in logical groove 21, lift mount pad 3 is fixed in pole setting 23, roughness meter 4 detachable connects on the lift mount pad 3. The online measurement of the roughness of the spherical surface of the inner ring of the large-specification spherical plain bearing is realized, the work piece carrying work for measurement is eliminated, and the measurement efficiency is improved. The portable mobile measurement instrument has the advantages of being portable and convenient to carry.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A roughness tester is characterized in that: including base, pivot angle support arm, lift mount pad and roughness appearance, the base includes first base and second base, first base is the ring form, the second base upwards extends perpendicularly along first base arc section on first base upper surface, pivot angle support arm one end upwards articulates perpendicularly on the second base, the pivot angle support arm footpath upwards is equipped with logical groove, it is equipped with the pole setting to lead to the inslot, the lift mount pad is fixed in the pole setting, roughness appearance detachable connects on the lift mount pad.

2. The roughness tester of claim 1, wherein: the lift mount pad includes backup pad and perpendicular to the backup pad and to the balladeur train that backup pad one side extends, the balladeur train is fixed in the pole setting, be equipped with the locking hand wheel on the balladeur train, be equipped with the mounting groove in the backup pad, the roughness appearance passes through the mounting groove is fixed in the backup pad.

3. The roughness tester of claim 1, wherein: the inner surface of the second base is provided with a groove, and the lower end of the swing angle supporting arm is accommodated in the groove and hinged with the second base.

4. The roughness tester of claim 1, wherein: the lower surface of the first base is provided with a circle of anti-slip pads.

5. The roughness tester of claim 4, wherein: the non-slip mat is made of polyurethane.