Light transmission detector

Abstract

The utility model belongs to the technical field of size detection equipment, and particularly relates to a light transmission detector. The light transmission detector comprises a test bed, a first power unit, a lower pressure plate, a guide rod, a cross beam, a second power unit, an upper pressure plate, a force measuring device, a measuring lamp and a light transmission measuring device, loads are applied to the sealing ring on the basis of the upper pressure plate and the lower pressure plate, the sealing ring is irradiated on the basis of the measuring lamp, and then the sealing ring is detected on the basis of the light transmission effect. According to the utility model, the size precision of the sealing ring can be accurately and optically measured, and the control range is wide.

Description

Technical Field

[0001] The utility model belongs to the technical field of size detection equipment, and specifically relates to a light transmission detector. Background Art

[0002] Light transmission inspection is a design requirement to simulate the inspection of the sealing performance of parts under working conditions, and is an important basis for judging whether the performance of parts is qualified.

[0003] Defects of light transmission inspection technology:

[0004] 1. The existing light transmission detection equipment applies pressure load to compress the parts manually, which has poor controllability and stability, and a high probability of accidental occurrence;

[0005] 2. The light source of the light transmittance detection equipment is relatively strong. When checking the light transmittance with the naked eye, there is a risk of dizziness, which may lead to inaccurate inspection results and great damage to the eyes. Since the light transmittance inspection is time-consuming, in order to ensure the nodes, the light transmittance inspection is only carried out by the operating workers, and there is no special inspection to ensure it, which also poses a risk of product unqualified. Utility Model Content

[0006] The utility model provides a light transmission detector and a sealing ring detection method. The light transmission detector applies a load to the sealing ring based on upper and lower pressure plates, irradiates the sealing ring based on a measuring light, and then detects the sealing ring based on the light transmission effect. The utility model can accurately perform optical measurement on the dimensional accuracy of the sealing ring and has a wide control range.

[0007] In order to achieve the above technical objectives, the specific technical solutions adopted by the utility model are:

[0008] A light transmission detector, comprising:

[0009] Test bench;

[0010] A first power unit, mounted on the test bench;

[0011] A lower pressure plate is installed on the test bench, one end of which is provided with a placement slot, and the other end is connected to the first power unit; the lower pressure plate generates a rotation coaxial with the placement slot based on the driving of the first power unit;

[0012] A guide rod, mounted on the test bench and perpendicular to the placement slot;

[0013] A crossbeam fixed to an end of the guide rod away from the lower pressure plate;

[0014] A second power unit is mounted on the crossbeam;

[0015] An upper pressure plate is slidably mounted on the guide rod and moves toward the placement groove based on the driving of the second power unit;

[0016] A force measuring device, mounted on the upper platen, for detecting the pressure between the upper platen and the lower platen;

[0017] A measuring lamp is installed at one end of the lower pressure plate where the placement slot is provided;

[0018] The light transmission measuring device detects the radial penetration effect of the measuring light on the sealing ring in the placement groove.

[0019] Furthermore, the first power unit includes a servo motor and a reducer; the input end of the reducer is connected to the output shaft of the servo motor, and the output end is connected to the lower pressure plate.

[0020] Furthermore, one end of the lower pressure plate away from the placement groove is fixedly connected to a rotating rod; one end of the rotating rod passes through the test bench and is connected to an output end of the reducer.

[0021] Furthermore, the second power unit is a power cylinder; an output rod of the power cylinder is connected to one end of the upper pressure plate away from the lower pressure plate.

[0022] Furthermore, the guide rods are in four groups.

[0023] Furthermore, the force measuring device is a pressure sensor.

[0024] Furthermore, the lower pressure plate is a flat tray.

[0025] Furthermore, the lower pressure plate and the placement groove are an integrated structure.

[0026] Furthermore, the measuring lamp is installed at the axis of the placement slot;

[0027] When a sealing ring is arranged in the placement groove, the projection of the measuring lamp perpendicular to the axial direction of the placement groove is located on the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a structural schematic diagram of a light transmission detector in a specific implementation mode of the utility model;

[0030] Among them: 1. test bench; 2. first power unit; 3. lower pressure plate; 4. guide rod; 5. crossbeam; 6. second power unit; 7. upper pressure plate; 8. force measuring device. DETAILED DESCRIPTION

[0031] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0032] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0033] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0034] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0035] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0036] In one embodiment of the present invention, a light transmission detector is provided, such as Figure 1 As shown, including:

[0037] Test bench 1;

[0038] A first power unit 2, mounted on a test bench 1;

[0039] The lower pressure plate 3 is installed on the test bench 1, with a placement groove at one end and the other end connected to the first power unit 2; the lower pressure plate 3 generates a rotation coaxial with the placement groove based on the driving of the first power unit 2;

[0040] A guide rod 4 is mounted on the test bench 1 and is perpendicular to the placement slot;

[0041] A crossbeam 5 is fixed to an end of the guide rod 4 away from the lower pressure plate 3;

[0042] A second power unit 6, mounted on the crossbeam 5;

[0043] The upper pressing plate 7 is slidably mounted on the guide rod 4 and moves toward the placement groove based on the driving of the second power unit 6;

[0044] A force measuring device 8 is installed on the upper platen 7 and is used to detect the pressure between the upper platen 7 and the lower platen 3;

[0045] A measuring lamp is installed at one end of the lower pressure plate 3 where a placement slot is provided;

[0046] The light transmission measuring device detects the radial penetration effect of the measuring light on the sealing ring in the placement groove.

[0047] In this embodiment, the first power unit 2 includes a servo motor and a reducer; the input end of the reducer is connected to the output shaft of the servo motor, and the output end is connected to the lower pressure plate 3.

[0048] In this embodiment, one end of the lower pressure plate 3 away from the placement groove is fixedly connected to a rotating rod; one end of the rotating rod passes through the test bench 1 and is connected to the output end of the reducer.

[0049] In this embodiment, the second power unit 6 is a power cylinder; the output rod of the power cylinder is connected to one end of the upper pressure plate 7 away from the lower pressure plate 3.

[0050] In this embodiment, there are four groups of guide rods 4. The force measuring device 8 is a pressure sensor. The lower pressure plate 3 is a flat tray.

[0051] In this embodiment, the lower pressure plate 3 and the placement groove are an integrated structure.

[0052] In this embodiment, the measuring lamp is installed at the axis of the placement slot;

[0053] When a sealing ring is provided in the placement groove, the projection of the measuring lamp perpendicular to the axial direction of the placement groove is located on the sealing ring.

[0054] In this embodiment, the lower pressure plate 3 and the placement groove are an integrated structure. The lower pressure plate 3 is a tray used to provide protection and support for the parts. It is designed as a flat tray (lower pressure plate 3) to observe the light transmittance state of the upper and lower parts of the parts in real time.

[0055] (2) The measuring lamp is installed in the middle of the tray. The light source is installed above the tray and below the height of the part to provide a light source for measuring light transmittance.

[0056] The method for using the light transmission detector in this embodiment includes the following steps:

[0057] S101: applying a load to the sealing ring based on a light transmission detector;

[0058] S102: irradiating the inner ring of the sealing ring radially from the inner side of the sealing ring with a measuring lamp;

[0059] S103: Measuring radial penetration effect based on light transmission measurement device

[0060] S104: The size of the sealing ring is proportional to the applied load. The larger the size of the sealing ring, the greater the load required. The specific effect can be seen in the actual compression effect of the sealing ring.

[0061] The specific operation method is: turn on the equipment, open the special light transmission detection program software, clean up the redundant objects in the equipment, create a new folder to record and archive, and then include the following steps: Step 1. Adjust the upper and lower pressure platens 3 to zero state; Step 2. Pull up the upper pressure plate 7 to a height of 30-50mm; Step 3. Place the part to be tested (sealing ring) at the center light source of the lower pressure plate 3; Step 4. Set the operation program of the upper pressure plate 7, the pressure is set to 15KN, the upper pressure plate 7 runs 2-3mm / s to 3mm away from the part, the moving speed is 0.5m / s to the part micro-compression state, and fixed; Step 5. Read the pattern and identify the light transmission; Step 6. Raise the upper pressure plate 7 and take out the measured part; Step 7. Number the data pattern and archive it.

[0062] Check the light transmittance. If the light transmittance measurement result is within the range of 0-0.02, the light transmittance test data is qualified, and the light transmittance in the circumferential direction does not exceed 20% (light transmittance qualified requirement). If it exceeds this result range, the part is judged to be unqualified for light transmittance. When the measurement data is within 0.25, the light transmittance of this part (sealing ring) is qualified. When the measurement data is 0.25-0.80, the light transmittance is large, the sealing leakage has exceeded the use requirements, and it needs to be repaired. When the measurement data is greater than 0.80, the part is unqualified.

[0063] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A light transmission detector, characterized in that: include: Test bench; A first power unit, mounted on the test bench; A lower pressure plate is installed on the test bench, one end of which is provided with a placement slot, and the other end is connected to the first power unit; the lower pressure plate generates a rotation coaxial with the placement slot based on the driving of the first power unit; A guide rod, mounted on the test bench and perpendicular to the placement slot; A crossbeam fixed to an end of the guide rod away from the lower pressure plate; A second power unit is mounted on the crossbeam; An upper pressure plate is slidably mounted on the guide rod and moves toward the placement groove based on the driving of the second power unit; A force measuring device, mounted on the upper platen, for detecting the pressure between the upper platen and the lower platen; A measuring lamp is installed at one end of the lower pressure plate where the placement slot is provided; The light transmission measuring device detects the radial penetration effect of the measuring light on the sealing ring in the placement groove.

2. The light transmission detector according to claim 1, characterized in that: The first power unit includes a servo motor and a reducer; the input end of the reducer is connected to the output shaft of the servo motor, and the output end is connected to the lower pressure plate.

3. The light transmission detector according to claim 2, characterized in that: One end of the lower pressure plate away from the placement groove is fixedly connected to a rotating rod; one end of the rotating rod passes through the test bench and is connected to the output end of the reducer.

4. The light transmission detector according to claim 3, characterized in that: The second power unit is a power cylinder; an output rod of the power cylinder is connected to an end of the upper pressure plate away from the lower pressure plate.

5. The light transmission detector according to claim 4, characterized in that: The guide rods are divided into four groups.

6. The light transmission detector according to claim 5, characterized in that: The force measuring device is a pressure sensor.

7. The light transmission detector according to claim 6, characterized in that: The lower pressure plate is a flat tray.

8. The light transmission detector according to claim 7, characterized in that: The lower pressure plate and the placement groove are an integrated structure.

9. The light transmission detector according to claim 8, characterized in that: The measuring lamp is installed at the axis of the placement slot; When a sealing ring is arranged in the placement groove, the projection of the measuring lamp perpendicular to the axial direction of the placement groove is located on the sealing ring.

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