Measuring tool for measuring inner conical surface of bearing ring

Abstract

The utility model discloses a measuring tool for measuring the inner conical surface of a bearing ring, which belongs to the technical field of bearing measurement, and comprises a support base, a positioning column, a support base plate, a bearing ring and a measuring cone, the center of the support base is provided with a core column position hole, and the positioning column is compressed in the core column position hole by adopting interference; the supporting base plate is arranged on the positioning column in a sleeving manner through the core column through hole A, and is fixedly connected with the supporting base; the inner ring of the bearing ring is provided with a to-be-measured inner conical surface, and the bearing ring is correspondingly placed on the supporting base plate; the measuring cone is correspondingly sleeved on the positioning column through the core column through hole B; the periphery of the measuring cone is provided with a conical pressing surface, and the conical pressing surface is matched with the size and the taper angle of an inner conical surface to be measured. The device is simple in structure, convenient to manufacture and low in cost, positioning, clamping and measuring of the bearing ring are facilitated, and the measuring precision and efficiency of the bearing ring are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing measurement technical field especially relates to a kind of measuring tool for measuring bearing sleeve ring inner taper face. BACKGROUND

[0002] Some special structure bearings, its sleeve ring needs to be processed into taper face, such as tapered roller bearing, cross roller bearing etc., how to conveniently, efficiently, accurately measure taper face is often the difficulty that needs to be solved in bearing production urgently.Taper face size is generally determined by the height of nominal circle distance reference end face (see the measured product schematic diagram), wherein nominal circle is a section circle at a certain height of sleeve ring taper face distance reference end face, the height, diameter and taper angle of nominal circle three can determine the size of taper face, under the condition of angle and nominal circle diameter, according to the relationship of trigonometric function, the size of nominal circle height is proportional to the size of taper face, measure the taper face size of bearing sleeve ring using this law.In daily production, the method for measuring taper face is usually measured by three coordinate measuring instrument or detected by color with taper gauge, and these two methods have the shortcomings of low measurement efficiency and being not conducive to on-line batch detection. SUMMARY

[0003] The technical problem solved by the present application is to provide a measuring tool for measuring the inner taper face of a bearing sleeve ring, which compares the overall height measured by the device with a standard sample using a height gauge to measure the size of the inner taper face of the bearing sleeve ring.

[0004] Technical solution: the measuring tool for measuring the inner taper face of a bearing sleeve ring, comprising:

[0005] A support base is provided with a core column position hole in the center;

[0006] A positioning column is pressed into the core column position hole with interference;

[0007] A support pad is provided with a core column through hole A in the center, the support pad is sleeved on the positioning column through the core column through hole A, and the support pad is fixedly connected with the support base;

[0008] A bearing sleeve ring is provided with an inner taper face to be measured, and the bearing sleeve ring is sleeved on the positioning column and placed on the support pad;

[0009] A measuring taper body is provided with a core column through hole B in the center, and the measuring taper body is sleeved on the positioning column through the core column through hole B; the outer periphery of the measuring taper body is provided with a tapered pressing surface, and the size and taper angle of the tapered pressing surface are adapted to the size and taper angle of the inner taper face to be measured.

[0010] Preferably, the support base is symmetrically provided with at least two threaded counterbores along the core column hole;

[0011] The support base is fixedly connected with the support pad plate through connecting screws.

[0012] Preferably, the lower part of the positioning column is provided with a limiting baffle ring, the outer diameter of the limiting baffle ring is matched with the inner diameter of the core column hole A of the support pad plate, and the diameter of the limiting baffle ring is greater than the diameter of the core column hole.

[0013] Preferably, the upper end surface of the support pad plate is provided with a sunken table, the end surface of the sunken table provides vertical support for the bearing ring to be measured, and the inner diameter of the sunken table is less than the bottom end inner diameter of the inner tapered surface to be measured of the bearing ring.

[0014] Preferably, the height of the conical pressing surface is not less than the height of the inner tapered surface to be measured.

[0015] Preferably, the top end of the measuring cone extends to form a cylinder.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] The utility model discloses a height gauge is compared with the mode that the device measurement whole height with standard sample, and the size of the inner tapered surface to be measured of bearing ring is measured. ACCURACY

[0018] Figure 1 It is the axial section view of the measuring tool and bearing ring measurement structure of the utility model;

[0019] Figure 2 It is the axial section view of the measuring tool and bearing ring measurement structure of the utility model; Figure 1 It is the support base structure schematic drawing ((a) plan view;(b) axial section view);

[0020] Figure 3 It is the support base structure schematic drawing ((a) plan view;(b) axial section view); Figure 1 It is the positioning column structure schematic drawing;

[0021] Figure 4 It is the positioning column structure schematic drawing; Figure 1 It is the support pad plate structure schematic drawing ((a) plan view;(b) axial section view);

[0022] Figure 5 It is the support pad plate structure schematic drawing ((a) plan view;(b) axial section view); Figure 1 It is the measuring cone structure schematic drawing ((a) plan view;(b) axial section view).

[0023] Reference numerals: 100, Measuring fixture; 1, Support base; 11, Core post hole; 12, Threaded countersunk hole; 2, Positioning post; 21, Limiting retaining ring; 3, Support pad; 31, Core post through hole A; 32, Connecting screw hole; 33, Countersunk platform; 4, Bearing ring; 41, Inner conical surface to be measured; 5, Measuring cone; 51, Core post through hole B; 52, Cylinder; 53, Conical pressure surface; 6, Connecting screw. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings. Figures 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] like Figures 1-5 As shown, this utility model discloses a measuring fixture for measuring the inner conical surface of a bearing ring. The measuring fixture 100 includes a support base 1, a positioning post 2, a support pad 3, a bearing ring 4, and a measuring cone 5. The support base 1 has a core post positioning hole 11 at its center. The positioning post 2 is press-fitted into the core post positioning hole 11. A scale is provided on the positioning post for observing the height of the measuring cone 5 on the positioning post 2. The support pad 3 has a core post through hole A31 at its center. The support pad 3 is fitted onto the positioning post 2 through the core post through hole A31, and the support pad 3 is fixedly connected to the support base 1. The inner ring of the bearing ring 4 has the inner conical surface 41 to be measured. The bearing ring 4 is fitted onto the positioning post 2 and placed on the support pad 3. The end face of the support pad 3 is in contact with the reference surface of the product being measured, providing vertical support for the product being measured, and also serving as the measurement reference surface of the measuring device. The measuring cone 5 has a core through hole B51 at its center, and the measuring cone is fitted onto the positioning post 2 through the core through hole B51. The outer periphery of the measuring cone 5 has a tapered pressing surface 53, which is adapted to the size and taper angle of the inner tapered surface 41 to be measured. By observing the height of the measuring cone 5 pressed into the inner tapered surface 41 to be measured, and comparing the overall height of the device with that of the standard sample using a height gauge, the size of the inner tapered surface to be measured of the bearing ring can be obtained.

[0026] like Figures 1-3As shown, the support base 1 is symmetrically provided with at least two threaded holes 12 along the core column hole 11; the support base plate 3 is symmetrically provided with a connecting screw hole 32 corresponding to the threaded hole 12 along the core column through hole A31, and the support base 1 is fixedly connected with the support base plate 3 through the connecting screw 6. The lower part of the positioning column 2 is provided with a limiting baffle 21, the outer diameter of the limiting baffle 21 is matched with the inner diameter of the core column through hole A31 of the support base plate, and the diameter of the limiting baffle 21 is greater than the diameter of the core column hole 11. The support base plate can fix and press the limiting baffle 21 on the support base 1 through the core column through hole A31, so that the structural stability of the positioning column 2 is improved, and the positioning column is prevented from shaking and separating from the support base during measurement.

[0027] As shown in the drawings, Figure 4 The upper end face of the support base plate 3 is provided with a sunken table 33, and the end face of the sunken table 33 provides vertical support for the bearing ring 4 to be measured; the inner diameter of the sunken table 33 is smaller than the bottom end inner diameter of the inner taper surface of the bearing ring 4 to be measured, or the inner diameter of the sunken table 33 is substantially equivalent to the inner diameter of the measured product. The two side end faces of the support base plate need to be ground, and the two side end faces of the support base plate can be machined into the structure of the sunken table 33. Machining the sunken table can reduce the grinding area of the two ends of the support base plate, improve the accuracy and efficiency of end face grinding, and further provide preliminary positioning for the bearing ring 4 to be measured. The bearing ring 4 to be measured is first correspondingly sleeved on the positioning column 2, and the bearing ring 4 is correspondingly supported on the sunken table 33, so that the preliminary positioning of the measurement position is realized, and then the measurement cone 5 is correspondingly sleeved on the positioning column 2 through the core column through hole B51, and in the process of pressing the measurement cone 5, the tapered pressing surface 53 is correspondingly pressed into the measured inner taper surface 41 of the bearing ring 4, so that the measurement can be carried out.

[0028] As shown in the drawings, Figure 5 The height of the tapered pressing surface 53 is not less than the height of the measured inner taper surface 41, so as to meet more measurement requirements. The top end of the measurement cone 5 extends to form a cylinder 52, and the cylinder 52 can conveniently and stably realize the holding of the measurement cone 5. The large end side end face of the measurement cone needs to be ground. It should be noted that the size and taper angle of the tapered pressing surface 53 of the measurement cone 5 are determined by the inner taper surface of the measured bearing ring, and the taper angle and size are basically the same as the inner taper surface of the measured product. The core column through hole B of the measurement cone 5 is in small gap fit with the positioning column 2, which not only ensures a certain coaxiality with the positioning column 2, but also can be conveniently taken off from the positioning column.

[0029] The working principle or working method of the utility model:

[0030] The measuring tool is placed on the height measuring plate, the standard sample is stably placed on the supporting base plate 3, it is noted that the size and taper angle of the taper surface of the standard sample are consistent with the measured product, and the actual deviation value of the standard sample from the nominal circle height dimension of the product taper surface is marked, the measuring cone 5 is correspondingly sleeved on the positioning column 2, is pressed in the inner taper surface of the standard sample, then the height gauge is calibrated to zero according to the deviation value marked on the standard sample, the measuring cone 5 and the standard sample are removed, the measured product is stably placed on the supporting base plate 3, the measuring cone 5 is correspondingly sleeved on the positioning column 2, is pressed in the measured inner taper surface 41 of the measured product, the height of the measuring cone is measured by using the height gauge calibrated to zero, and the deviation value of the measured height value from the zero position is the actual deviation value of the measured product from the nominal circle height of the product design.

[0031] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the utility model.

Claims

1. A measuring tool for measuring an inner cone surface of a bearing ring, characterized in that, The measuring tool (100) comprises: A support base (1) provided with a core column position hole (11) in the center; A positioning column (2) tightly pressed in the core column position hole (11) by interference; A support pad plate (3) provided with a core column through hole A (31) in the center, the support pad plate (3) is sleeved on the positioning column (2) through the core column through hole A (31), and the support pad plate (3) is fixedly connected with the support base (1); A bearing ring (4) provided with a measured inner conical surface (41) in the inner ring, and the bearing ring (4) is correspondingly sleeved on the positioning column (2) and placed on the support pad plate (3); A measuring cone (5) provided with a core column through hole B (51) in the center, the measuring cone is correspondingly sleeved on the positioning column (2) through the core column through hole B (51); the outer periphery of the measuring cone (5) is provided with a conical pressing surface (53), and the size and taper angle of the conical pressing surface (53) are matched with the measured inner conical surface (41).

2. The measuring tool for measuring the inner cone surface of a bearing ring according to claim 1, characterized in that, The support base (1) is symmetrically provided with at least two threaded counterbores (12) along the core column position hole (11); The support pad plate (3) is symmetrically provided with a connecting screw hole (32) corresponding to the threaded counterbores (12) along the core column through hole A (31), and the support base (1) is fixedly connected with the support pad plate (3) through a connecting screw (6).

3. The measuring tool for measuring the inner cone surface of a bearing ring according to claim 1, wherein, The lower part of the positioning column (2) is provided with a limiting baffle ring (21), the outer diameter of the limiting baffle ring (21) is matched with the inner diameter of the core column through hole A (31) of the support pad plate, and the diameter of the limiting baffle ring (21) is greater than the diameter of the core column position hole (11).

4. The measuring tool for measuring the inner cone surface of a bearing ring according to claim 2, wherein, The upper end surface of the support pad plate (3) is provided with a sunken table (33), the end surface of the sunken table (33) provides vertical support for the bearing ring (4) to be measured, and the inner diameter of the sunken table (33) is smaller than the bottom end inner diameter of the measured inner conical surface of the bearing ring (4).

5. The measuring tool for measuring the inner tapered surface of a bearing ring according to any one of claims 1 to 4, characterized in that, The height of the conical pressing surface (53) is not less than the height of the measured inner conical surface (41).

6. The measuring tool for measuring the inner cone surface of a bearing ring according to claim 5, wherein, The top end of the measuring cone (5) extends to form a cylinder (52).

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