CN216717807U - Miniature Bearing Inspection Auxiliary Device - Google Patents

Abstract

The utility model provides a miniature bearing detection auxiliary device which comprises a detection table, wherein a spring piece and a plurality of clamping grooves are arranged on the detection table, the clamping grooves are arranged in an angle shape with an opening gradually enlarged, the spring piece comprises an arc-shaped part and a limiting part, the limiting part is in limiting fit with the detection table, a mounting hole for accommodating an inner ring of a bearing to be detected is formed between the arc-shaped part and the clamping grooves, the inner wall of the mounting hole is in three-point contact fit with the inner ring of the bearing to be detected, and the three points are uniformly distributed on the outer diameter of the inner ring of the bearing to be detected. Aiming at the defects of the prior art, the utility model provides the miniature bearing detection auxiliary device which is convenient to use and accurate in positioning.

Description

Miniature Bearing Inspection Auxiliary Device

technical field

The utility model relates to a miniature bearing detection auxiliary device.

Background technique

With the development of the machinery industry in today's society, more and more mechanical equipment is developing in the direction of lightness, thinness and convenience. Among them, the miniature bearing, as an important rotating support component of the mechanical body, has also developed rapidly in the direction of miniaturization. The requirements of miniature bearings are also becoming more and more stringent. The inspection of related items on the inner hole of miniature bearings has always been a difficult problem in the development stage of miniature bearings. There are few related studies, and because the dimensions and weight of miniature bearings themselves are small, The stability of the measurement results is poor, and it is more sensitive to the influence of external forces. It is inconvenient to use a conventional type of inspection tool for clamping and positioning to measure the auxiliary detection. It is urgent to design an accurate and convenient detection auxiliary device.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a miniature bearing detection auxiliary device which is convenient to use and accurate in positioning

In order to achieve the above purpose, the utility model provides a miniature bearing detection auxiliary device, which includes a detection table, the detection table is provided with a spring sheet and a plurality of clamping grooves, and the clamping grooves have an angle that gradually increases toward the opening. The said spring piece includes an arc part and a limit part, the limit part cooperates with the detection table, and a bearing to be tested is formed between the arc part and the clamping groove. An installation hole accommodated in the inner ring, the inner wall of the installation hole and the inner ring of the bearing to be tested are in contact and fit at three points, and the above three points are evenly distributed on the outer diameter of the inner ring of the bearing to be tested.

The advantage of adopting the above technical scheme is that: by setting the spring sheet with the limiting part and the arc-shaped part on the detection table and a number of angular clamping grooves which are gradually enlarged toward the opening, the limiting part of the spring sheet is arranged to be in line with the detection table. Phase limit, and an installation hole is formed between the arc part and the clamping groove, and the inner wall of the installation hole formed by the arc part and the clamping groove can form three points evenly distributed on the outer diameter between the inner ring of the bearing to be tested When testing, after the inner ring of the bearing to be tested is dust-free, push it into the installation groove of the corresponding size, so that the three contact points in the outer diameter direction of the inner ring of the bearing are fixed. The size is such that the contact point and the two points of the clamping groove are balanced and fixed at 120° to each other, and the three contact points are fixed at 120° to each other, which can balance the force on the outer diameter of the bearing to be tested and reduce the deformation caused by the thin wall. The purpose of applying the fixing force by the spring sheet is to reduce the damage to the thin wall caused by the rigid contact. After completion, the diameter and perpendicularity of the inner hole of the inner ring of the miniature bearing can be adjusted with three coordinates, length measuring machine, projector, roundness meter, etc. , roundness, roughness and other dimensional accuracy are measured and analyzed. After the inspection, the spring sheet can be taken out first to release the limit of the inner ring of the bearing to be measured. It solves the problems that the inner ring of the miniature bearing is thin and easy to deform, the inclination of the clamping affects the detection results, the error measurement is not easy to be found, and the disassembly and assembly of the tested piece is complicated, etc., and the measurement efficiency is improved.

The utility model can be further configured as follows: the detection table is provided with a protruding portion, the plurality of clamping grooves are circumferentially arranged on the peripheral wall of the protruding portion, and the spring pieces are arranged in a ring shape and sleeved together. on the raised portion.

Through further arrangement, a raised portion is arranged on the detection table, and a plurality of clamping grooves are arranged on the peripheral wall of the raised portion at circumferential intervals, so as to facilitate the setting of the clamping groove, and the elastic sheet is sleeved on the raised portion at this time. On the other hand, while forming a certain limit for the spring sheet, it is also convenient for the clamping grooves to correspond one-to-one with the protrusions on the spring sheet.

The utility model can be further configured as follows: the protruding portion is arranged in a polygonal shape with the number of edges corresponding to the number of clamping grooves, and a plurality of edges of the protruding portion and a plurality of clamping grooves are arranged in a one-to-one correspondence, the limiting The part is angular and can fit with the corner formed by the adjacent edge of the raised part.

By further setting, the protruding portion is set into a polygonal shape with the number of edges corresponding to the number of clamping grooves, and the multiple edges of the protruding portion and the plurality of clamping grooves are in one-to-one correspondence. The edges and corners formed by the adjacent edges of the two parts fit together, which constitutes the positioning of the spring sheet and the detection table, and can avoid mutual interference between the adjacent clamping grooves.

The utility model can be further configured as follows: a sliding block is slidably arranged on the detection table, and abutting protrusions extending into the installation holes are provided on the sliding block, and the abutting protrusions are attached to the arc-shaped portion. combined settings.

Through further arrangement, when the operator toggles the slider, the arc portion of the spring sheet can be pulled, so as to promote the elastic deformation of the spring sheet, and it is convenient for the inner ring of the bearing to be tested to be placed in the installation hole.

The utility model can be further configured as follows: the detection table is provided with a magnetic part, and the magnetic part is arranged below the installation hole.

Through further arrangement, the inner ring of the bearing to be tested can be positioned axially by the magnetic part on the basis of the three-point positioning of the mounting hole formed by the spring sheet and the clamping groove, so as to ensure the stability during the detection process.

Description of drawings

1 is a perspective view of an embodiment of the present utility model in a state of use;

Fig. 2 is the top view of the utility model embodiment;

3 is a schematic structural diagram of a spring sheet in an embodiment of the present utility model;

Among them: detection table 1; clamping groove 11; convex part 12; slider 13; abutting protrusion 131; magnetic part 14; spring sheet 2; arc part 21; Inner ring 4.

Detailed ways

The embodiment of a miniature bearing detection auxiliary device of the present invention is shown in Figures 1-3: it includes a detection table 1, and the detection table 1 is provided with a spring sheet 2 and a plurality of clamping grooves 11. The clamping grooves 11 It is arranged in an angular shape that gradually increases toward the opening. The spring sheet 2 includes an arc-shaped portion 21 and a limit portion 22. A mounting hole 3 for accommodating the inner ring of the bearing to be tested is formed between the part 21 and the clamping groove 11. The inner wall of the mounting hole 3 and the inner ring 4 of the bearing to be tested are in three-point contact fit, and the above three points are all in contact with each other. It is placed on the outer diameter of the inner ring 4 of the bearing to be tested. The detection table 1 is provided with a raised portion 12 , the plurality of clamping grooves 11 are circumferentially arranged on the peripheral wall of the raised portion 12 , and the spring sheet 2 is arranged in a ring shape and is sleeved on the raised portion 12 . on the riser 12. The protruding portion 12 is arranged in a polygonal shape with the number of edges corresponding to the number of the clamping grooves 11 , and a plurality of edges of the protruding portion and the plurality of clamping grooves 11 are arranged in a one-to-one correspondence, and the limiting portion 22 is angular and can fit with the corners formed by the adjacent edges of the raised portion 12 . A sliding block 13 is slidably arranged on the testing table 1 , and abutting protrusions 131 extending into the mounting holes 3 are provided on the sliding block 13 , and the abutting protrusions 131 are in contact with the arc-shaped portion 21 . set up. The detection table 1 is provided with a magnetic portion 14 , and the magnetic portion 14 is arranged below the mounting hole 3 . In this embodiment, the magnetic portion 14 refers to the entire table below the mounting hole 3 , which is made of magnetic material. Of course, a magnetic block can also be embedded in the corresponding position of the mounting hole 3 to achieve the same effect.

The above examples are only one of the preferred specific examples of the present invention, and the usual changes and substitutions made by those skilled in the art within the scope of the technical solutions of the present invention are included in the protection scope of the present invention.

Claims (5)

1. A miniature bearing detection auxiliary device is characterized in that: it comprises a detection table, and the detection table is provided with a spring sheet and a plurality of clamping grooves, and the clamping grooves are arranged in an angular shape that is gradually enlarged toward the opening, so The said spring piece includes an arc part and a limit part, the limit part cooperates with the detection table, and a space for the inner ring of the bearing to be tested is formed between the arc part and the clamping groove. The inner wall of the installation hole and the inner ring of the bearing to be tested are in contact and fit at three points, and the above three points are evenly distributed on the outer diameter of the inner ring of the bearing to be tested. 2 . The auxiliary device for detecting a miniature bearing according to claim 1 , wherein a convex portion is provided on the test table, and the plurality of clamping grooves are circumferentially spaced on the peripheral wall of the convex portion. 3 . The spring sheet is annularly arranged and sleeved on the raised portion. 3 . The auxiliary device for detecting a miniature bearing according to claim 2 , wherein the protruding portion is arranged in a polygonal shape with the number of edges corresponding to the number of clamping grooves, and a plurality of edges of the protruding portion and a plurality of clamping grooves are arranged. 4 . They are arranged in a one-to-one correspondence, and the limiting portion is angular and can fit with the corners formed by the adjacent edges of the raised portions. 4 . The auxiliary device for detection of miniature bearings according to claim 3 , wherein a sliding block is slidably arranged on the detection table, and abutting protrusions extending into the installation holes are provided on the sliding block, so that the The abutting protrusions are arranged in close contact with the arc-shaped portion. 5 . The auxiliary device for detection of miniature bearings according to claim 1 , wherein the detection table is provided with a magnetic part, and the magnetic part is arranged below the installation hole. 6 .

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