Camera lens module suitable for additive manufacturing of special pipeline

Abstract

The utility model belongs to the field of cameras, and discloses a camera lens module suitable for special pipeline additive manufacturing, which comprises a shell assembly, a protection window is arranged at the light inlet end of the shell assembly, a neutral density optical filter is arranged on the protection window, and a rectangular prism, a movable support and a movable lens cone are sequentially arranged in the shell assembly. An attenuation sheet lens base and a pushing mechanism are further arranged in the shell assembly, the pushing mechanism is used for pushing the attenuation sheet lens base back and forth, the attenuation sheet lens base can move to the position between the protection window and the rectangular prism, and an attenuation sheet and a narrow-band optical filter are arranged on the attenuation sheet lens base. According to the argon arc welding device, the pushing mechanism, the attenuation piece and the narrow-band optical filter are arranged, in the argon arc welding process, the attenuation piece and the narrow-band optical filter which need to be used are bounced to the position in front of the lens through the pushing mechanism, stray light and interference of a highlight part are effectively eliminated, light wave bands are accurately filtered, regulated and controlled, and arc light interference is reduced; and it is ensured that the system achieves the optimal performance in a real additive environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of camera, concretely is a camera lens module suitable for special pipeline additive manufacturing. BACKGROUND

[0002] In the argon arc welding process detection of the inner wall of the bimetallic inner coating composite steel pipe, there are complex working conditions such as strong electromagnetic interference, high temperature and high radiation. In the prior art, the filter performance of the welding camera lens module is insufficient, which leads to poor imaging quality of the lens module under complex conditions, and even affects the accuracy of detection.

[0003] The camera lens module is widely used in various monitoring and detection systems, and plays an important role in welding monitoring. High-intensity arc light, infrared light and ultraviolet light are generated during welding, which not only interferes with the imaging quality of the camera, but also may damage the equipment. The existing filter applied to the pipeline additive welding camera is fixed, and the same filtering is performed for any situation during use, which is not flexible. Moreover, high-intensity arc light and scattered light are generated during welding, and the existing filter may cause loss of part of the effective signal (such as weak visible light or infrared light) while isolating strong light, affecting image clarity and signal integrity, and the problem of overexposure of bright part and loss of dark part details may easily occur in high dynamic range (HDR) scenes, which cannot take into account the light intensity distribution of the entire welding area. SUMMARY

[0004] The utility model aims at providing a camera lens module suitable for special pipeline additive manufacturing to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A camera lens module suitable for special pipeline additive manufacturing, comprising a shell assembly, a protection window is arranged at the light inlet end of the shell assembly, a neutral density filter is arranged on the protection window, a right-angle prism, a moving bracket and a movable lens barrel are arranged in the shell assembly in sequence, the right-angle prism is located between the protection window and the right-angle prism, an attenuation sheet mirror seat and a pushing mechanism are further arranged in the shell assembly, the pushing mechanism is used to push the attenuation sheet mirror seat back and forth, the attenuation sheet mirror seat can be moved to between the protection window and the right-angle prism, an attenuation sheet and a narrow-band filter are arranged on the attenuation sheet mirror seat.

[0007] Further, the wavelength range of the narrow-band filter is 300nm-1500nm.

[0008] Further, the wavelength of the narrow-band filter is 650nm.

[0009] Further, the transmittance of the neutral density filter is any one of 1%, 5%, 10%, 30%, 40%, 50%, 60%.

[0010] Further, the attenuation piece is a fish-eye attenuation filter.

[0011] Further, the pushing mechanism is a pneumatic cylinder.

[0012] Further, the bottom of the protective window is provided with a simulation lamp bead.

[0013] Further, the housing assembly is provided with a prism seat for mounting a right-angle prism.

[0014] Further, the protective window is connected with a thin air pipe.

[0015] Compared with the prior art, the beneficial effects of the present application are that the pushing mechanism, the attenuation piece and the narrow-band filter are arranged, the attenuation piece and the narrow-band filter needed to be used are popped in front of the lens through the pushing mechanism during the argon arc welding process, the stray light and the high light part interference are effectively eliminated, the light wave band is accurately filtered and controlled, the arc light interference is reduced, the system reaches the best performance in the real additive environment, and the accuracy and the efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the present application.

[0017] Figure 2 It is a structural schematic view of the present application.

[0018] In the figure: the housing assembly 1, the protective window 2, the neutral density filter 3, the right-angle prism 4, the moving support 5, the movable lens barrel 6, the attenuation piece lens seat 7, the pushing mechanism 8, the attenuation piece 9, the narrow-band filter 10, the simulation lamp bead 11, the prism seat 12, the thin air pipe 13. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0020] Please refer to Figure 1 and Figure 2The utility model provides a camera lens module suitable for special pipe additive manufacturing, including shell assembly 1, the shell assembly 1 includes left shell and right shell through screw connection, and there is installation space between both, the light inlet end of shell assembly 1 is provided with protection window 2, protection window 2 includes window seat and the window glass piece of setting on window seat, the neutral density filter 3 of setting on window glass piece, the installation space of shell assembly 1 is provided with the right angle prism 4, mobile support 5, movable lens barrel 6 in turn, right angle prism 4 is located between protection window 2 and mobile support 5, protection window 2, right angle prism 4, mobile support 5, movable lens barrel 6 constitute L shape structure with right angle prism 4 as the turning point. Right angle prism 4 is used to reflect light 90 DEG into the camera. Mobile support 5 is used to limit and fixed lens. Movable lens barrel 6 provides movable range and limit for camera position adjustment. Shell assembly 1 is also provided with attenuation piece mirror seat 7 and push mechanism 8, push mechanism 8 is used to push attenuation piece mirror seat 7 back and forth, attenuation piece mirror seat 7 can move to between protection window 2 and right angle prism 4, attenuation piece 9 and narrowband filter 10 are set on attenuation piece mirror seat 7, attenuation piece 9 and narrowband filter 10 are stacked together, and the up-down order can be adjusted arbitrarily. The shell assembly 1 of the utility model is also provided with a conventional focusing pin for adjusting and changing the focal length of the camera.

[0021] Further, the wavelength of the narrowband filter 10 can be selected in the range of 300nm-1500nm, with one every 50nm, and preferably 650nm. The narrowband filter 10 selects a specific wavelength of light and blocks other wavelengths from entering. The transmittance of the neutral density filter 3 is any one of 1%, 5%, 10%, 30%, 40%, 50%, and 60%. The neutral density filter 3 is used to adjust the intensity of the incident light. The attenuation piece 9 is preferably a fisheye attenuation filter, with a light transmittance that increases from the center outward. The attenuation piece 9 is used to adjust the light entering the camera.

[0022] Further, the push mechanism 8 is preferably a pneumatic cylinder, and can also be an electric cylinder or other mechanism. The output shaft of the pneumatic cylinder is connected to the attenuation piece mirror seat 7, which is horizontally slidingly fitted in the installation space of the shell assembly 1. The pneumatic cylinder drives the attenuation piece mirror seat 7 to reciprocate in the installation space of the shell assembly 1. When argon arc welding is required, the pneumatic cylinder pushes the attenuation piece mirror seat 7 to the front of the lens, and the attenuation piece 9 and the narrowband filter 10 on the attenuation piece mirror seat 7 are blocked between the window glass piece and the right angle prism 4.

[0023] Further referring to Figure 1 and Figure 2 , the bottom of the protection window 2 is provided with a simulation lamp bead 11, which supplements the light source when the system light is insufficient, and enhances the image clarity. The shell assembly 1 is provided with a prism seat 12 for mounting the right angle prism 4. The protection window 2 is connected with a thin air pipe 13, which is used for the outflow of internal gas.

[0024] The utility model is applied to the argon arc welding process detection of the inner wall of bimetal inner coating composite steel pipe pipeline.

[0025] In the normal state without arc welding, the neutral density filter 3 is used to control the light intensity.

[0026] In the argon arc welding process, the attenuation sheet 9 and the narrowband filter 10 needed to be used are bounced in front of the lens by the air cylinder to ensure the imaging quality of the lens.

[0027] It should be noted that the right-angle prism 4, the moving support 5, the movable lens barrel 6, the attenuation sheet lens seat 7, the analog lamp bead 11, the prism seat 12 and the thin air pipe 13 are all known technologies in the field and will not be described in detail.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A camera lens module suitable for additive manufacturing of special pipes, characterized in that, The device includes a housing assembly (1), a protective window (2) is provided at the light-inlet end of the housing assembly (1), a neutral density filter (3) is provided on the protective window (2), a right angle prism (4), a movable bracket (5) and a movable lens tube (6) are arranged in sequence inside the housing assembly (1), the right angle prism (4) is located between the protective window (2) and the movable bracket (5), an attenuator lens mount (7) and a pushing mechanism (8) are also provided inside the housing assembly (1), the pushing mechanism (8) is used to push the attenuator lens mount (7) back and forth, the attenuator lens mount (7) can move between the protective window (2) and the right angle prism (4), and an attenuator (9) and a narrow band filter (10) are provided on the attenuator lens mount (7).

2. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The wavelength range of the narrowband filter (10) is 300nm-1500nm.

3. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The narrowband filter (10) has a wavelength of 650 nm.

4. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The transmittance of the neutral density filter (3) is any one of 1%, 5%, 10%, 30%, 40%, 50%, and 60%.

5. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The attenuator (9) is a fisheye attenuation filter.

6. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The pushing mechanism (8) is a cylinder.

7. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The bottom of the protection window (2) is provided with simulated LED beads (11).

8. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The housing assembly (1) is provided with a prism mount (12) for mounting the right-angle prism (4).

9. A camera lens module suitable for additive manufacturing of special pipes according to claim 1, characterized in that, The protective window (2) is connected to the thin air tube (13).

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