Device for measuring size, planeness and parallelism of workpiece

Abstract

The utility model belongs to the technical field of metrological verification, and discloses a device for measuring the size, planeness and parallelism of a workpiece, which comprises a height gauge base (1), a fastening screw (2), a digital display caliper body (3), a digital display caliper digital display part (4), a lever meter (6) and a digital display caliper outer measuring claw (7). The digital display caliper body (3) is vertically fixed above the caliper base (1); the digital display part (4) of the digital caliper is fixed on the digital caliper body (3) through the fastening screw (2); the digital caliper outer measuring claw (7) is fixedly connected with the digital caliper digital display part (4); the digital caliper outer measuring claw is contacted with the upper surface of the workpiece; the lever meter (6) is connected with an outer measuring claw of the digital caliper, and a measuring head and a measuring needle of the lever meter are used for measuring the flatness and the parallelism of a workpiece. According to the utility model, the size of the workpiece and parameters such as flatness and parallelism of each working surface of the workpiece can be measured conveniently, quickly and accurately.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of measurement and verification, especially relates to the device of fast measurement big size workpiece size and flatness, parallelism. BACKGROUND

[0002] When measuring workpiece size, especially workpiece size above 300mm, the height of lever gauge support limits the size of the measured workpiece. In the measuring process, V-shaped iron or qualified square box is needed to place the lever gauge on the auxiliary equipment to measure the size of the workpiece and the flatness and parallelism of each work surface of the workpiece. Because auxiliary equipment is added, it will inevitably affect the accuracy of the measurement results of each parameter of the workpiece. In order to conveniently, quickly and accurately measure each parameter of the workpiece, a measuring device needs to be designed and manufactured. SUMMARY

[0003] The technical problem to be solved by the utility model is how to quickly and accurately measure the size, flatness and parallelism of a large-size workpiece.

[0004] To solve the above technical problem, the specific technical scheme of the utility model is as follows:

[0005] A device for measuring the size, flatness and parallelism of a workpiece comprises a height gauge base 1, a fastening screw 2, a digital caliper ruler body 3, a digital caliper number display part 4, a lever gauge 6 and a digital caliper outer measuring claw 7.

[0006] The digital caliper ruler body 3 is vertically fixed above the height gauge base 1. The digital caliper number display part 4 is fixed on the digital caliper ruler body 3 through the fastening screw 2. The digital caliper outer measuring claw 7 is fixedly connected with the digital caliper number display part 4. The digital caliper outer measuring claw 7 is in contact with the upper surface of the workpiece. The lever gauge 6 is connected with the digital caliper outer measuring claw 7, and the measuring head needle of the lever gauge is used for measuring the flatness and parallelism of the workpiece.

[0007] The height gauge base 1 is placed on a flat plate together with the measured workpiece.

[0008] The utility model has the following advantages: the size of the workpiece (especially the size of the workpiece above 300mm) and the flatness and parallelism of each work surface of the workpiece can be conveniently, quickly and accurately measured. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the front view of the measuring device of the utility model embodiment;

[0010] Figure 2 It is the top view of the measuring device;

[0011] Figure 3It is the schematic view of the ruler body and the digital display part;

[0012] Figure 4 It is the top view of the ruler body and the digital display part;

[0013] Figure 5 It is the front view of the lever dial gauge;

[0014] Figure 6 It is the top view of the lever dial gauge

[0015] Marked description in the figure: 1-height ruler base; 2-fastening screw; 3-ruler body; 4-digital display part; 5-measuring head probe; 6-lever gauge; 7-outer measuring claw of digital caliper. DETAILED DESCRIPTION

[0016] In order to better understand the purpose, structure and function of the utility model, the utility model is described in further detail below in combination with the drawings.

[0017] As Figure 1 shown, the device for measuring workpiece size, flatness and parallelism of the utility model, including height ruler base 1, fastening screw 2, digital caliper ruler body 3, digital caliper digital display part 4, lever gauge measuring head probe 5, lever gauge 6, digital caliper outer measuring claw 7.

[0018] Among them, (1) height ruler base 1, for fixing the whole set of measuring device, guaranteeing the stability of the measuring device;

[0019] (2) fastening screw 2, for fixing the position of the digital caliper display part, determining the workpiece size;

[0020] (3) digital caliper ruler body 3, for measuring workpiece size;

[0021] (4) digital caliper digital display part 4, for displaying the measured size of workpiece;

[0022] (5) lever gauge measuring head probe 5, for being used in cooperation with the dial of lever gauge, measuring the flatness and parallelism of workpiece;

[0023] (6) lever gauge 6, for measuring the flatness and parallelism of workpiece;

[0024] (7) the outer measuring claw 7 of digital caliper, for determining the workpiece size;

[0025] The connecting relationship between the above-mentioned component parts is that the digital caliper ruler body is connected with the base by using the locking device of height ruler base, the outer measuring claw of digital caliper has a through hole in the middle, and the movement mechanism of lever gauge and the gauge frame are connected by using screw.

[0026] The device is composed of three parts, the first part is the height gauge base, mainly to fix the whole measuring device, to ensure the stability of the device; the second part is the ruler body, cursor, fastening screw and outer measuring claw part of the digital caliper, to accurately measure the size parameters of large size workpiece; the third part is the dial cover, movement mechanism and measuring head and measuring needle part of the lever gauge, to measure the flatness and parallelism and other parameters of the workpiece. The specific working process of the device is as follows:

[0027] When using the device, the device and the measured workpiece are placed on a flat plate together, the position of the cursor part of the digital caliper is adjusted, the outer measuring claw 7 of the digital caliper is in contact with the upper surface of the workpiece, the fastening screw 2 on the digital caliper is tightened, and the numerical value of the digital display part of the digital caliper is read, which is the actual measurement size of the measured workpiece. The measuring head and measuring needle of the lever gauge are used to measure the movement of each measuring surface of the measured workpiece, and the measurement values of the flatness and parallelism of each measuring surface are read.

[0028] Although the embodiments of the utility model are described in combination with the drawings, a number of modifications and improvements can be made by those skilled in the art without departing from the principles of the utility model, and these should be regarded as belonging to the protection scope of the utility model.

Claims

1. A device for measuring the dimensions, flatness, parallelism of a workpiece, characterized in that, It include height scale base (1), fastening screw (2), digital caliper scale body (3), digital caliper number display part (4), lever table (6), digital caliper outer measuring claw (7); The digital caliper scale body (3) is vertically fixed above the scale base (1); the digital caliper number display part (4) is fixed on the digital caliper scale body (3) through the fastening screw (2); the digital caliper outer measuring claw (7) is fixedly connected with the digital caliper number display part (4); the digital caliper outer measuring claw (7) is in contact with the upper surface of the workpiece; the lever table (6) is connected with the digital caliper outer measuring claw (7), and the measuring head needle of the lever table is used for measuring the flatness and parallelism of the workpiece.

2. The apparatus for measuring the size, flatness, parallelism of a workpiece as claimed in claim 1, wherein, The height scale base (1) is placed on a flat plate together with the measured workpiece.

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