A standard body for calibrating an online chamber detection device

Abstract

This utility model belongs to the field of metrology and testing technology, and discloses a standard body for calibrating online bore fitting testing equipment. Its main body is a plate, with one side featuring a double measuring surface. The double measuring surface consists of two stepped planes with a height difference between them, and the double measuring surface faces the light source emitted by a laser rangefinder sensor. The other side of the plate has a raised, embeddable end face for fixing and adhering to a bore fitting gauge. A threaded hole is provided at the center of the plate for connecting the measuring screw of a digital push-pull force gauge. The plate also has convenient double-holding holes, with the center of the double holes aligned with the threaded hole. This utility model's technical solution uses this standard body to calibrate online bore fitting testing equipment, which is convenient, simple, and highly operable. It does not introduce the measurement uncertainty factor inherent in the equipment itself, resulting in small measurement errors and high calibration reliability.

Description

Technical Field

[0001] This utility model belongs to the field of metrology and testing technology, and specifically relates to a standard body for calibrating an online chamber fitting test device. Background Technology

[0002] Due to the unique technical and performance characteristics of products in the defense science and technology industry, specialized testing equipment is often developed and configured specifically to meet the product's testing requirements. Online bore-fitting testing equipment is mainly used for bore-fitting testing of rolled pharmaceutical cartridges. It is a typical specialized testing device, and its accuracy directly affects the product's precision. Therefore, it is necessary to design suitable standard bodies for equipment calibration.

[0003] To address the metrological verification requirements of online bore fitting testing equipment for rolled pharmaceutical tubes, an analysis of the equipment's structural components revealed that only the laser rangefinder and pressure sensor possess data transmission and output capabilities, significantly impacting the accuracy and effectiveness of bore fitting testing. The laser rangefinder measures and determines whether the steel base protrudes from the bore fitting gauge end face. The entire bore fitting testing equipment involves two physical parameters: pressure and length. The pressure sensor performs bore fitting tests on the hot-pressed rolled pharmaceutical tube product, detecting the maximum bore fitting force during the process. Therefore, when designing calibration standards, it is necessary to comprehensively consider the equipment's structural composition, operating principles, and technical parameter control requirements to minimize the introduction of measurement errors. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this invention is: how to calibrate online chamber detection equipment.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a standard body for calibration of online chamber detection equipment. Its main body is a plate, and one side of it is set with a double measuring surface. The double measuring surface is two stepped planes with a height difference between the two planes. The double measuring surface faces the light source emitted by the laser rangefinder sensor.

[0008] The other side of the plate has a raised, embeddable end face for fixing and fitting to the bore gauge; a threaded hole is provided at the center of the plate for connecting the measuring screw of the digital push-pull force gauge; the plate also has a convenient double holding hole, the center of the double hole and the threaded hole are on the same straight line.

[0009] Furthermore, the height difference between the two measuring surfaces is 2±0.02mm, and the flatness is 0.02mm.

[0010] (III) Beneficial Effects

[0011] Compared with the prior art, the present invention has the following advantages: using this standard body to calibrate the online chamber fitting detection equipment is convenient, simple, and highly operable, and does not introduce the measurement uncertainty factor of the equipment itself, resulting in small measurement error and high calibration reliability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a dual-measurement surface standard body proposed in this utility model. Detailed Implementation

[0013] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0014] This embodiment provides a standard body for calibrating an online bore fitting inspection device, including a dual measuring surface 1, each with two planes (1-1, 1-2) and a fixed height difference, a threaded hole 2, an insertable end face 3, a mating plane 4, and a convenient dual-holding hole 5. The height difference between the dual measuring surfaces is 2 ± 0.02 mm, and the flatness of both is 0.02 mm. The dual measuring surface setup is compatible with the online bore fitting inspection device. The appropriate height difference allows the light source emitted by the laser rangefinder sensor to be reflected onto the standard body at the correct angle and position, reducing measurement errors caused by optical path deviations and ensuring reliable calibration of the laser rangefinder sensor. The insertable end face has an extension diameter of 172 mm and can be fixedly fitted to the bore fitting gauge. The insertable end face and the bore fitting gauge can be fixedly fitted to the bore fitting gauge, uniformly transmitting force and torque, avoiding local stress concentration caused by uneven contact surfaces, reducing wear and friction on the contact surfaces, improving connection reliability, and ensuring that the measurement accuracy meets the requirements. The convenient dual-holding hole has a diameter of 20 mm and a distance of 60 mm between the holes. The convenient dual grip holes make it easy for operators to hold and operate, evenly distribute the weight of the standard body, reduce hand fatigue, adapt to different types of work scenarios, and improve the versatility of the standard body.

[0015] By comparing the actual height difference between the two measuring surfaces with the measured value of the laser rangefinder, the laser rangefinder can be calibrated. The threaded hole is used to connect the measuring screw of the digital push-pull force gauge. By operating the control panel of the equipment, a fixed pressure value is set, and the reliability of the pressure sensor measurement data is indirectly verified by comparison. The embeddable end face is used for standard body fixed installation and fits the front face of the bore gauge. The center position of the two holes and the threaded hole are on the same straight line, presenting a precise linear arrangement, ensuring structural symmetry and stability, and providing a balanced force point for handling operations.

[0016] Example 1

[0017] The dual-measurement surface standard body is installed onto the online bore gauge inspection equipment via the convenient dual-holding hole 5, ensuring that the mating plane 4 is in contact with the end face of the bore gauge. The equipment is operated so that the two beams of light from the laser rangefinder sensor illuminate two planes (measurement surface 1-1 and measurement surface 1-2) on the standard body with a height difference. One beam illuminates the surface to be measured, plane 1-1, and the measurement data is C2; the other beam illuminates the surface to be measured, plane 1-2, and the measurement data is C3. The relative height difference between plane 1-1 and plane 1-2 is then C1 = C2 - C3. By analyzing the difference between the measured value C1 and the actual value C4 (the higher-level metrology unit uses a high-precision coordinate measuring machine to accurately obtain the actual value C4 of the height difference between the two measurement surfaces), the indication error of the laser sensor can be accurately determined, completing the calibration of the online bore gauge inspection equipment (laser rangefinder sensor element).

[0018] Example 2

[0019] Connect the digital push-pull force gauge measuring screw to the standard body threaded hole 2 through the convenient double-holding hole 5. Fit the component onto the fitting gauge, ensuring that the mating plane 4 is in contact with the end face of the fitting gauge. Operate the control panel of the equipment and slowly move the component where the pressure sensor is located until the measuring head is in contact with the force measuring fixture plate and the push-pull force gauge displays a reading of no more than 10N. At this time, the pressure value collected by the equipment pressure sensor will also be displayed on the control panel of the equipment. Compare the two values ​​to indirectly verify whether the pressure sensor measurement data is reliable.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A standard body for calibrating an online chamber detection apparatus, characterized by Its main body is a plate, and one side is set with a double measuring surface. The double measuring surface is two stepped planes with a height difference between the two planes. The double measuring surface faces the light source emitted by the laser rangefinder. The other side of the plate has a raised, embeddable end face for fixing and fitting to the bore gauge; a threaded hole is provided at the center of the plate for connecting the measuring screw of the digital push-pull force gauge; the plate also has a convenient double holding hole, the center of the double hole and the threaded hole are on the same straight line.

2. The standard body for calibrating an online ogive detection apparatus according to claim 1, wherein The height difference between the two measuring surfaces is 2±0.02mm, and the flatness is 0.02mm.

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