Device for rapidly detecting straightness and taper

Abstract

The invention relates to the technical field of measurement, in particular to a device for quickly detecting straightness and taper, which comprises a bottom plate, a measuring block is abutted against the upper surface of the bottom plate, a dial indicator is mounted above the measuring block, and a right-angle plate is abutted against one side of the measuring block. According to the device, the measuring block is placed on the bottom plate, the right-angle plate is attached to the measuring block to calibrate the zero position of the dial indicator, then the measuring block is placed on the measured piece to move, the difference value of the dial indicator is checked, a detection value is obtained, the straightness and the taper can be directly measured on the measured piece, three-coordinate measurement is not needed, and certain detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of measurement technology, in particular to a device for quickly detecting straightness and taper. Background Art

[0002] The load saddle is one of the important parts of the railway vehicle bogie. It is mainly used to evenly distribute the weight transmitted from the car body to the bearings and axle necks. It plays an important role in preventing uneven loads and burning axles. After production, it can be tested with straightness and taper detection devices.

[0003] However, the existing straightness and taper requirements on the arc surface of the load-bearing saddle and the shape tolerance can only be detected by three coordinates, which limits the detection equipment and has low detection efficiency. Summary of the invention

[0004] The object of the present invention is to provide a device for quickly detecting straightness and taper, so as to solve the problem of limited detection equipment and low detection efficiency proposed in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a device for quickly detecting straightness and taper, comprising:

[0006] A bottom plate, the upper surface of which is in contact with a measuring block, a micrometer is installed above the measuring block, and one side of the measuring block is in contact with a right-angle plate.

[0007] Preferably, the bottom plate needs to be placed on a horizontal surface.

[0008] Preferably, four micrometers are provided and are fixedly connected to the measuring block by welding.

[0009] Preferably, the four micrometers are alternately installed above the measuring block.

[0010] Preferably, the lower side of the right-angle plate abuts against the upper surface of the bottom plate.

[0011] Preferably, the length of the measuring block is consistent with the inner width of the measured object.

[0012] Preferably, the base plate, the measuring block and the right-angle plate are of the same length.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The device of the invention places the measuring block on the bottom plate and uses a right-angle plate to calibrate the micrometer to zero position, then places the measuring block on the workpiece and moves it to check the difference of the micrometer to obtain the detection value. The straightness and taper can be measured directly on the workpiece without the need for three-coordinate measurement, thereby improving the detection efficiency to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the back side of the overall structure of the present invention;

[0017] Figure 3 It is a top schematic diagram of the overall structure of the present invention;

[0018] Figure 4 It is an exploded schematic diagram of the overall structure of the present invention;

[0019] Figure 5 The figure is a schematic diagram of the position distribution of the measuring block and the micrometer of the present invention.

[0020] In the figure: 01, base plate; 02, measuring block; 03, micrometer; 04, right-angle plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-5 The present invention provides an embodiment: a device for quickly detecting straightness and taper. The micrometer 03 used in this application is a product that can be directly purchased on the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0023] The bottom plate 01 is placed on a horizontal surface, which is convenient for placing the measuring block 02 and the right-angle plate 04 on the bottom plate 01, and improves the stability of the measuring block 02 and the right-angle plate 04 when they are placed on the bottom plate 01. The upper surface of the bottom plate 01 is abutted against the measuring block 02. When the measuring block 02 is placed on the measured object and moved, the difference of the micrometer 03 is checked to obtain the detection value. The micrometer 03 is installed above the measuring block 02, and the micrometer 03 is stably and firmly installed by welding. Installed on the measuring block 02, when the measuring block 02 is placed on the measured object and moved, the difference of the micrometer 03 is checked to obtain the detection value. One side of the measuring block 02 is abutted with a right-angle plate 04. When the measuring block 02 is placed on the base plate 01 and the micrometer 03 is calibrated with the right-angle plate 04, the fitting area of ​​the right-angle plate 04 and the measuring block 02 is increased to ensure that the fitting of the right-angle plate 04 is more stable. When the measuring block 02 is placed on the base plate 01, it is more convenient to calibrate the micrometer 03 on the measuring block 02.

[0024] Furthermore, the base plate 01 needs to be placed on a horizontal surface. Placing the base plate 01 on the horizontal surface facilitates the subsequent placement of the measuring block 02 and the right-angle plate 04 on the base plate 01, thereby improving the stability of the measuring block 02 and the right-angle plate 04 when placed on the base plate 01.

[0025] Furthermore, four micrometers 03 are provided and fixedly connected to the measuring block 02 by welding. By welding, the micrometer 03 is stably and firmly mounted on the measuring block 02. When the measuring block 02 is placed on the measured object and moved, the difference of the micrometer 03 is checked to obtain the detection value.

[0026] Furthermore, the four micrometers 03 are alternately installed above the measuring block 02. The design of alternate installation greatly reduces the occupied space between the four micrometers 03, making the installation of the four micrometers 03 more compact.

[0027] Furthermore, the bottom of the right-angle plate 04 is abutted against the upper surface of the base plate 01. The bottom of the right-angle plate 04 is abutted against the upper surface of the base plate 01, and one side of the right-angle plate 04 is attached to the surface of the measuring block 02. The micrometer 03 on the measuring block 02 can be calibrated, ensuring the stability of the right-angle plate 04 during calibration.

[0028] Furthermore, the length of the measuring block 02 is consistent with the inner width of the measured object. After completing the calibration of the micrometer 03, the measuring block 02 is placed on the inner side of the measured object, and the measuring block 02 is moved to ensure the consistency of the width, thereby ensuring the stability of the measuring block 02 when moving and ensuring that the measuring block 02 will not be offset.

[0029] Furthermore, the lengths of the base plate 01, the measuring block 02 and the right-angle plate 04 are consistent. When the measuring block 02 is placed on the base plate 01 and the micrometer 03 is calibrated with the right-angle plate 04, the fitting area of ​​the right-angle plate 04 and the measuring block 02 is increased to ensure that the fitting of the right-angle plate 04 is more stable. When the measuring block 02 is placed on the base plate 01, it is more convenient to calibrate the micrometer 03 on the measuring block 02.

[0030] Working principle: When in use, first place the measuring block 02 on the bottom plate 01 and use the right angle plate 04 to calibrate the micrometer 03 to zero, then place the measuring block 02 on the measured object and move it to check the difference of the micrometer 03 to obtain the test value. The above is the entire working principle of the present invention.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A device for quickly detecting straightness and taper, characterized in that: include: A bottom plate (01), the upper surface of the bottom plate (01) is in contact with a measuring block (02), a micrometer (03) is installed above the measuring block (02), and one side of the measuring block (02) is in contact with a right-angle plate (04).

2. The device for quickly detecting straightness and taper according to claim 1, characterized in that: The bottom plate (01) needs to be placed on a horizontal surface.

3. The device for quickly detecting straightness and taper according to claim 1, characterized in that: Four micrometers (03) are provided and are fixedly connected to the measuring block (02) by welding.

4. The device for quickly detecting straightness and taper according to claim 1, characterized in that: The four micrometers (03) are alternately installed above the measuring block (02).

5. The device for quickly detecting straightness and taper according to claim 2, characterized in that: The lower side of the right-angle plate (04) abuts against the upper surface of the bottom plate (01).

6. The device for quickly detecting straightness and taper according to claim 3, characterized in that: The length of the measuring block (02) is consistent with the inner width of the measured object.

7. The device for quickly detecting straightness and taper according to claim 4, characterized in that: The lengths of the base plate (01), the measuring block (02) and the right-angle plate (04) are consistent.

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