CN202032986U - Inner spherical surface diameter testing fixture - Google Patents

Abstract

The utility model discloses an inner spherical surface diameter inspection tool, which is characterized in that it comprises a table frame, a main body, a shaft, a linear bearing, a sliding seat, a sliding spherical measuring head, a fixed spherical measuring head, a small handle and a large handle: the table The frame, the fixed spherical measuring head and the large handle are all fixedly arranged on the main body, and the sliding seat is movably connected to the main body through a linear bearing and a shaft, and a small handle and a sliding spherical measuring head are fixedly arranged on the sliding seat. The inner spherical diameter inspection tool uses the comparative measurement principle and the spherical automatic centering principle. The inspection tool is used for the measurement of the workpiece after being zeroed on the calibration part. The measuring head and sliding parts are used to complete the measurement of the diameter of the inner sphere, and the centering is performed directly at the diameter of the inner sphere, which is suitable for measuring the diameter of the inner sphere with high precision requirements.

Description

An inner spherical diameter inspection tool

technical field

The utility model relates to the technical field of inspection tool manufacturing, in particular to an inner spherical surface diameter inspection tool which utilizes a spherical measuring head and a sliding part to measure the inner spherical surface diameter.

Background technique

In the technical field of inner spherical diameter measurement, it is necessary to find the center of the inner spherical diameter for data measurement to obtain an accurate value, that is, it is necessary for the inspection tool to be automatically centered. At present, the instruments used to measure the diameter of the inner spherical surface mainly include R templates, inner diameter dial gauges, and three-coordinate measuring machines. If the R sample is used for measurement, the quality of the product can only be judged qualitatively through coloring or gaps, and the specific value of the diameter cannot be obtained. Although the inner diameter dial gauge can quantitatively reflect the value of the measured product, since the measuring head needs to be continuously adjusted to find the highest point of the inner spherical diameter during measurement, this will affect the measurement speed and bring some artificial errors. Operating errors, which affect the measurement results. The three-coordinate measuring machine can obtain accurate data by collecting points, but due to its own characteristics, it cannot meet the needs of rapid online detection of products. Therefore, a checking tool capable of accurate positioning and rapid detection is very necessary.

For this reason, the utility model proposes an inner spherical surface diameter inspection tool that can automatically locate and quantitatively detect the inner spherical surface diameter.

Contents of the invention

The problem to be solved by the utility model is: how to provide an inner spherical surface diameter inspection tool, which has the advantages of simple and reasonable structure, convenient use, low production cost, accurate and quick positioning, etc. The inspection tool uses a spherical probe Parts and sliding parts are used to complete the automatic positioning on the tested spherical surface, which can avoid the influence of human positioning factors; at the same time, through the method of comparison measurement, various information of the tested product can be obtained, which is suitable for inner spherical diameters with high precision requirements detection.

In order to achieve the purpose of the above invention, the technical solution adopted by the utility model is to provide an inner spherical diameter inspection tool, which is characterized in that it includes a table frame, a main body, a shaft, a linear bearing, a sliding seat, a sliding spherical probe, a fixed spherical Measuring head, small handle and large handle: the table frame, fixed spherical measuring head and large handle are all fixedly arranged on the main body, the sliding seat is movably connected to the main body through a linear bearing and a shaft, and a small Handle and sliding ball probe.

According to the inner spherical diameter inspection tool provided by the utility model, the meter frame is installed on the side of the main body through screws, and is used to fix the meter used for measurement.

According to the inner spherical diameter inspection tool provided by the utility model, it is characterized in that the main body is provided with a square hole for installing the sliding seat; the sliding seat is elastically connected to the main body through two shafts mounted on linear bearings .

According to the inner spherical surface diameter checking tool provided by the utility model, the feature is that the sliding spherical measuring head and the fixed spherical measuring head are installed on the same side of the inner spherical surface diameter checking tool.

According to the inner spherical surface diameter inspection tool provided by the utility model, the measuring parts of the sliding spherical probe and the fixed spherical probe are both spherical structures arranged symmetrically.

According to the inner spherical diameter inspection tool provided by the utility model, it is characterized in that it also includes a calibration piece for zero calibration of the inspection tool.

In summary, the inner spherical diameter inspection tool provided by the utility model has the advantages of simple and reasonable structure, convenient use, low manufacturing cost, accurate and fast positioning, and the like. The inspection tool uses the comparative measurement principle and spherical automatic centering principle, and completes the measurement of the diameter of the inner spherical surface through the spherical probe and sliding parts, which is suitable for the detection of the diameter of the inner spherical surface with high precision requirements; at the same time, the probe can be replaced , Products of different specifications can be measured by changing the probe. Now it is mainly used for on-line detection of the diameter of inner spherical parts.

Description of drawings

Figure 1 is a cross-sectional view of the overall structure of the inner spherical diameter inspection tool;

Figure 2 is a sectional view of the meter calibration piece;

Fig. 3 is a schematic diagram of the structure of the sliding ball side and the fixed ball measuring head.

Among them, 1. Table frame; 2. Main body; 3. Shaft; 4. Linear bearing; 5. Sliding seat; 6. Sliding ball side head; 7. Fixed ball measuring head; 8. Small handle; 9. Large handle; 10 , Calibration pieces.

Detailed ways

The specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing:

As shown in the figure, the inner spherical diameter inspection tool includes a table frame 1, a main body 2, a shaft 3, a linear bearing 4, a sliding seat 5, a sliding spherical probe 6, a fixed spherical probe 7, a small handle 8 and a large handle 9: The table frame 1, the fixed spherical probe 7 and the large handle 9 are all fixedly arranged on the main body 2, the sliding seat 5 is movably connected to the main body 2 through the linear bearing 4 and the shaft 3, and the sliding seat 5 is fixedly provided with a small Handle 8 and sliding spherical probe 6. The meter frame 1 is installed on the side of the main body 2 by screws, and is used for fixing the meter used for measurement. The main body 2 is provided with a square hole for installing the sliding seat 5 ; the sliding seat 5 is elastically connected to the main body 1 through two shafts 3 installed on the linear bearings 4 . The sliding spherical measuring head 6 and the fixed spherical measuring head 7 are installed on the same side of the inner spherical surface diameter inspection tool. It also includes a calibration piece 10 for zero calibration of the gauge. The calibration piece 10 is manufactured according to the middle value of the tolerance of the diameter of the inner spherical surface.

The measuring parts of the sliding spherical measuring head 6 and the fixed spherical measuring head 7 are spherical structures arranged symmetrically, and the spherical shape has the function of self-centering, so as to avoid affecting the measurement results due to the inability to find the highest point of the spherical diameter. At the same time, the sliding spherical measuring head 6 and the fixed spherical measuring head 7 can be replaced, and products of different specifications can be measured by changing the sliding spherical measuring head 6 and the fixed spherical measuring head 7 . Linear bearings and shafts guarantee precise and safe sliding.

A fixed spherical measuring head 7, the fixed spherical measuring head 7 is fixedly installed under the main body 2; the measuring part of the measuring head is a spherical structure; a sliding spherical measuring head 6, the sliding spherical measuring head 6 is fixedly installed on the sliding seat 5 Below: the structure of the measuring part of the sliding spherical measuring head 6 is the same as that of the fixed spherical measuring head 7; the measuring head can be replaced, so that products of different specifications can be measured by changing the measuring head.

The small handle 8 is installed on the sliding seat 5 , and the large handle 9 is installed on the main body 2 . Hold the two handles tightly, the sliding seat 5 drives the sliding spherical probe 6 to move closer to the fixed spherical probe 7, so that the probe can be easily put into the hole to be tested, and then release the handle, the sliding seat 5 drives the sliding spherical probe 6 away from the fixed spherical measuring head 7, and finally automatically positioned, at this time the reading on the meter can be calculated with the value of the standard part to get the value of the inspected hole.

The above are only preferred embodiments of the present utility model. It should be pointed out that in the technical field, without departing from the principle of the utility model, some improvements and modifications can be made to the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims (6)

1. An inner spherical diameter inspection tool, characterized in that it includes a table frame (1), a main body (2), a shaft (3), a linear bearing (4), a sliding seat (5), and a sliding spherical probe (6) , Fixed spherical measuring head (7), small handle (8) and large handle (9): the table frame (1), fixed spherical measuring head (7) and large handle (9) are all fixedly arranged on the main body (2) The sliding seat (5) is movably connected to the main body (2) through the linear bearing (4) and the shaft (3), and the sliding seat (5) is fixedly equipped with a small handle (8) and a sliding spherical measuring head (6 ). 2. The inner spherical diameter inspection tool according to claim 1, characterized in that, the meter frame (1) is mounted on the side of the main body (2) by screws, and is used to fix the meter used for measurement. 3. The inner spherical diameter inspection tool according to claim 1, characterized in that, the main body (2) is provided with a square hole for installing the sliding seat (5); the sliding seat (5) passes through two The shaft (3) installed on the linear bearing (4) is elastically connected with the main body (1). 4. The inner spherical diameter inspection tool according to claim 1, characterized in that, the sliding spherical measuring head (6) and the fixed spherical measuring head (7) are installed on the same side of the inner spherical surface diameter inspection tool. 5 . The inner spherical surface diameter inspection tool according to claim 4 , characterized in that, the measuring parts of the sliding spherical probe ( 6 ) and the fixed spherical probe ( 7 ) are both symmetrically arranged spherical structures. 6 . 6 . The inner spherical diameter inspection tool according to claim 1 , 2 , 3 , 4 or 5 , further comprising a calibration piece ( 10 ) for zero calibration of the inspection tool. 6 .

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