Pin gauge rapid measuring device

Through innovative design of the support structure and measurement structure, combined with digital micrometer and wedge-shaped positioning block, the problem of low accuracy or cumbersome process in the existing needle gauge detection methods is solved, and fast and high-precision needle gauge measurement is achieved.

CN223283542UActive Publication Date: 2025-08-29TAIZHOU INST OF METROLOGY & TESTING
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Patent Information

Application Number
CN202422578353.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-08-29
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

The existing needle gauge detection methods have low accuracy or cumbersome processes, which are difficult to meet the needs of large-scale factory inspection.

Method used

The combination of support structure and measurement structure is adopted, including tabletop, flat crystal, digital micrometer and wedge-shaped positioning block, combined with the blade-shaped measuring head, to achieve fast and high-precision measurement of the needle gauge.

Benefits of technology

It realizes fast, simple and low-cost high-precision needle gauge measurement, simplifies the measurement process and improves detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pin gauge rapid measuring device. The pin gauge rapid measuring device comprises a supporting structure and a measuring structure. Wherein the supporting structure comprises a table top and a plane optical flat, the plane optical flat is arranged at the central position of the table top, and a positioning block used for positioning a pin gauge to be measured is arranged on the plane optical flat; the measuring structure comprises a digital display micrometer and a measuring head which are installed on one side of the table top, the measuring head is located at the measuring end of the digital display micrometer, the digital display micrometer is fixed to one side of the table top through a supporting arm, a display screen used for displaying measuring results is arranged on the digital display micrometer, and the measuring head of the digital display micrometer and the flat crystal are coaxially arranged. According to the device, rapid measurement of the needle gauge can be realized through the high-precision digital display micrometer, the planar optical flat and the wedge-shaped positioning block, and compared with a traditional measurement mode, the device has the advantages of simpler structure, low cost, high-precision measurement capability and simple and rapid measurement process.
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Description

Technical Field

[0001] The utility model relates to the technical field of pin gauge measuring equipment, in particular to a pin gauge rapid measuring device. Background Art

[0002] Pin gauges are hard, round rods of specific dimensions made from stainless steel, tool steel, ceramic, tungsten steel, bearing steel, or other materials. Pin gauges are suitable for measuring hole diameters, hole spacing, and internal thread minor diameters in mechanical and electronic processing. They are particularly well-suited for measuring bending slot widths and mold dimensions. They are used to check position, measure hole dimensions, and check the distance between two holes. They can also be used as go / no-go gauges and measure hole depth. They are essential tools for standardized hole inspection, and workpieces are inspected using internationally advanced laser detectors. They are widely used in various high-tech fields, including electronic boards, circuit boards, molds, and precision machinery manufacturing. Available styles include smooth pin gauges, pin gauges with handles, titanium-coated pin gauges, and ceramic pin gauges.

[0003] Pin gauges need to be inspected before leaving the factory and before use to ensure they meet standard specifications. Existing methods for pin gauge inspection include comparative measurement using an optical gauge and gauge blocks, and direct measurement using a length measuring machine. An optical gauge is a commonly used optical measuring instrument with high precision and a simple structure. It uses a gauge block as a length reference and performs comparative measurement based on the principle of optical lever amplification. A length measuring machine is an optical length measuring tool that uses the scale of a linear ruler or the wavelength of a light wave as a known length and a mechanical probe for contact measurement. It mainly consists of precision mechanics, an optical system, and electrical components, and can be used for direct and comparative measurement of part dimensions. The comparative measurement method using an optical gauge and gauge blocks is highly accurate but cumbersome, making it unsuitable for large-scale factory inspection. While a length measuring machine is fast, its measurement results are inaccurate. Therefore, a rapid pin gauge measurement device is needed. Utility Model Content

[0004] The purpose of the present utility model is to provide a pin gauge rapid measurement device, which has a simple structure and is easy to use. It can realize rapid measurement of the pin gauge through a high-precision digital micrometer, a plane crystal and a wedge-shaped positioning block. Compared with the traditional measurement method, it has a more streamlined structure and low cost. It has the advantages of high-precision measurement capability and a simple and quick measurement process, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A pin gauge rapid measuring device, comprising:

[0007] Support structures and measurement structures;

[0008] The support structure includes a table and a flat crystal, the flat crystal is arranged at the center of the table, and a positioning block for positioning the needle gauge to be measured is arranged on the flat crystal;

[0009] The measuring structure includes a digital micrometer and a measuring head installed on one side of the table. The measuring head is located at the measuring end of the digital micrometer. The digital micrometer is fixed to one side of the table through a supporting arm. A display screen for displaying measurement results is provided on the digital micrometer. The measuring head of the digital micrometer and the plane crystal are coaxially arranged.

[0010] Preferably, the measuring head is a special-shaped measuring head with a knife edge, and the width of the blade of the measuring head is 3mm-5mm.

[0011] Preferably, the positioning block is a wedge-shaped block, and the positioning block is located on one side of the center of the plane flat crystal to limit the needle gauge to be measured to the center of the plane flat crystal.

[0012] Preferably, the planar flat crystal is configured as a rectangular planar flat crystal.

[0013] Preferably, the table top is configured as a marble table top with a smooth horizontal surface.

[0014] Preferably, the bottom of the table top is symmetrically provided with supporting feet, which are made of rubber material.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a supporting structure including a table and a plane crystal, and a measuring structure including a digital micrometer and a knife-edge measuring head, and a wedge-shaped positioning block for positioning the pin gauge to be measured is provided on the plane crystal. The device has a simple structure and is easy to use. The pin gauge can be quickly measured by the high-precision digital micrometer, the plane crystal and the wedge-shaped positioning block. Compared with the traditional measuring method, the utility model has a more streamlined structure and low cost, and has the advantages of a simple and quick measuring process while having high-precision measurement capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] In the figure: 1. Table; 2. Flat crystal; 3. Positioning block; 4. Measuring head; 5. Digital micrometer; 6. Support arm; 7. Display screen; 8. Support foot. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 , the utility model provides a technical solution:

[0021] A pin gauge rapid measuring device, comprising:

[0022] Support and measurement structures;

[0023] Among them, the supporting structure includes a table 1 and a plane crystal 2, the plane crystal 2 is arranged at the center of the table 1, and a positioning block 3 is provided on the plane crystal 2 for positioning the gauge to be measured; the measuring structure includes a digital micrometer 5 and a measuring head 4 installed on one side of the table 1, the measuring head 4 is located at the measuring end of the digital micrometer 5, the digital micrometer 5 is fixed to one side of the table 1 through a supporting arm 6, and a display screen 7 for displaying the measurement results is provided on the digital micrometer 5, and the measuring head 4 of the digital micrometer 5 and the plane crystal 2 are coaxially arranged.

[0024] By setting up a supporting structure including a table 1 and a plane crystal 2, and a measuring structure including a digital micrometer 5 and a knife-edge measuring head 4, and a wedge-shaped positioning block 3 for positioning the pin gauge to be measured is set on the plane crystal 2. When in use, first use the standard pin gauge to zero the digital micrometer 5. After zeroing is completed, the pin gauge to be measured is placed on the wedge-shaped positioning block 3 for positioning, and the measuring rod of the digital micrometer 5 is lifted for measurement. The measurement value of the pin gauge to be measured is calculated according to the standard value of the standard pin gauge and the display result of the digital micrometer 5 display screen 7, and whether the pin gauge is standard and qualified is judged by the deviation of the measurement result.

[0025] In general, the device has a simple structure and is easy to use. It can achieve rapid measurement of the pin gauge through the high-precision digital micrometer 5, the plane flat crystal 2 and the wedge-shaped positioning block 3. Compared with the traditional measurement method, it has a more streamlined structure and low cost. It has the advantages of high-precision measurement capability and a simple and quick measurement process.

[0026] In addition, the measuring head 4 is a special-shaped measuring head 4 with a knife edge shape, and the width of the knife edge of the measuring head 4 is 3 mm to 5 mm.

[0027] By setting the measuring head 4 as a knife-edge shaped special-shaped measuring head 4, the flat knife head can better fit the surface of the pin gauge when measuring the pin gauge, which facilitates the measurement of the pin gauge.

[0028] In addition, the positioning block 3 is a wedge-shaped block, and the positioning block 3 is located on one side of the center of the planar crystal 2 to limit the needle gauge to be measured to the center of the planar crystal 2.

[0029] Setting the positioning block 3 as a wedge-shaped block can facilitate positioning of a circular needle gauge.

[0030] In addition, the flat crystal 2 is set to a rectangular flat crystal 2. The table top 1 is set to a marble table top 1 with a smooth surface. The bottom of the table top 1 is symmetrically provided with supporting feet 8, which are made of rubber material.

[0031] By cooperating with the marble table 1 and the flat crystal 2, the test surface of the entire device can be kept horizontal, which is convenient for subsequent pin gauge measurement.

[0032] The digital micrometer 5 is a high-precision spiral digital micrometer 5 , the stroke of which can be 0-30 mm, and the corresponding stroke can be replaced according to the specifications of the needle gauge, with an accuracy of 0.001 mm.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A pin gauge rapid measuring device, characterized in that: include: Support and measurement structures; The support structure comprises a table (1) and a flat crystal (2), wherein the flat crystal (2) is arranged at the center of the table (1), and a positioning block (3) for positioning a needle gauge to be measured is provided on the flat crystal (2); The measuring structure comprises a digital micrometer (5) and a measuring head (4) mounted on one side of a table (1); the measuring head (4) is located at a measuring end of the digital micrometer (5); the digital micrometer (5) is fixed to one side of the table (1) via a supporting arm (6); a display screen (7) for displaying measurement results is provided on the digital micrometer (5); and the measuring head (4) of the digital micrometer (5) and the flat crystal (2) are coaxially arranged.

2. A needle gauge rapid measuring device according to claim 1, characterized in that: The measuring head (4) is a knife-edge shaped special-shaped measuring head (4), and the width of the blade of the measuring head (4) is 3 mm to 5 mm.

3. The pin gauge rapid measuring device according to claim 1, characterized in that: The positioning block (3) is a wedge-shaped block, and the positioning block (3) is located on one side of the center of the plane flat crystal (2) to limit the needle gauge to be measured to the center of the plane flat crystal (2).

4. The pin gauge rapid measuring device according to claim 1, characterized in that: The planar flat crystal (2) is configured as a rectangular planar flat crystal (2).

5. The pin gauge rapid measuring device according to claim 1, characterized in that: The table top (1) is configured as a marble table top (1) with a horizontal and smooth surface.

6. The pin gauge rapid measuring device according to claim 1, characterized in that: Support feet (8) are symmetrically arranged at the bottom of the table top (1), and the support feet (8) are made of rubber material.