Focusing assembly and molten pool camera

Abstract

The utility model provides a focusing assembly and a molten pool camera, the focusing assembly comprises a lens, a focusing ring, a focusing lens seat and a focusing fixing seat, the lens is arranged on the focusing lens seat, the focusing ring is composed of an inner ring and an outer ring, the inner side of the inner ring of the focusing ring is provided with a multi-head threaded hole, and the outer ring of the focusing ring is provided with a multi-head threaded hole. A multi-head threaded shaft matched with the multi-head threaded hole in a threaded mode is arranged outside the lens seat, a fine thread pitch threaded hole is formed in an inner ring of the focusing fixing seat, a fine thread pitch threaded shaft matched with the fine thread pitch threaded hole in a threaded mode is arranged on the outer side of an inner ring of the focusing ring, and the screwing direction of the fine thread pitch thread is opposite to that of the multi-head thread. The focusing lens seat and the focusing fixing seat are limited in an axial sliding manner through a sliding assembly. Compared with an existing externally-mounted adjusting mechanism, an adjusting mechanism does not need to be additionally mounted outside the camera, cost increase is avoided, dependence on mounting space is avoided, the camera is internally provided with a focusing assembly, operation is convenient and easy, and after a set screw is added for locking, the definition stability is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of molten pool monitoring, in particular to a focusing assembly and molten pool camera. BACKGROUND

[0002] In the field of industrial welding and additive manufacturing, molten pool monitoring technology is the core link to improve process precision and product quality. The molten pool camera captures real-time dynamic images of high-temperature molten pool, providing key data support for process parameter optimization. However, existing molten pool cameras do not support lens focusing function, limiting their use in industrial field. In practical applications, the installation position of the camera needs to be adjusted for different use environments. This method of adjusting the installation distance is very inconvenient to operate, requires high skills of the debugging personnel, takes a long time to debug, has poor precision, and cannot ensure the imaging clarity.

[0003] There are also some focusing cameras on the market, such as a camera focusing mechanism disclosed in Chinese patent CN221613163U, which includes a mounting plate, a moving block assembly, and a screw rod assembly. The moving block assembly is connected with a camera, and the moving direction of the moving block assembly is consistent with the focusing direction of the camera. The rod assembly 2 is connected to the mounting plate, and the screw rod assembly can drive the moving block assembly and the camera to move together in the focusing direction. By adjusting the up-down position of the camera, the focusing function is achieved. However, this focusing mechanism moves the installation position of the camera by adding an external installation adjustment mechanism to achieve the focusing function for different installation environments. Although it can achieve precise focusing, the external installation adjustment mechanism is large in size, high in cost, has certain requirements for installation space, and the stability of the equipment depends on the strength of the screw rod assembly itself. SUMMARY

[0004] (I) Technical problems solved

[0005] To overcome the shortcomings of the prior art, the utility model provides a focusing assembly and molten pool camera, which adjusts the relative position of the internal lens through the focusing mechanism to achieve the focusing function and ensure the clarity of the image. The structure is simple, the operation is convenient, the cost is low, the size is small, it can be adapted to most molten pool cameras and fixed focus lenses on the market, and it can meet different use scenarios.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the utility model discloses a focusing assembly, focusing assembly includes lens, focusing ring, focusing lens seat, focusing fixed base, the lens is arranged on focusing lens seat, the focusing ring is by inner ring and outer ring constitutes, the inner ring of focusing ring inside is equipped with multiple start thread hole, the outer focusing lens seat is equipped with multiple start thread shaft with multiple start thread hole thread adaptation, the inner ring of focusing fixed base is equipped with fine tooth pitch thread hole, the inner ring outside of focusing ring is equipped with fine tooth pitch thread shaft with fine tooth pitch thread hole thread adaptation, and the rotation direction of multiple start thread is contrary, and focusing lens seat and focusing fixed base pass the axial sliding limit of sliding component.

[0008] Preferably, the sliding assembly includes at least one limit rod, and the side of the focusing lens seat is provided with a limit rod fixing hole for accommodating the limit rod.

[0009] Preferably, the outer ring of the focusing ring is provided with a focusing anti-skid groove.

[0010] Preferably, the lens is connected and fixed with the focusing lens seat by a threaded or glue dispensing fixed mode.

[0011] Preferably, the center of the focusing lens seat is provided with a lens fixing hole, and the lens and the lens fixing hole are provided with mutually adapted threads.

[0012] Preferably, the center of the focusing lens seat is provided with a lens fixing hole, and the edge of the lens fixing hole is provided with a glue dispensing groove for glue dispensing.

[0013] Preferably, the focusing assembly further includes a filter, and the side of the focusing lens seat away from the lens is provided with a filter fixing hole, and the filter can be fixed in the filter fixing hole by glue dispensing.

[0014] A molten pool camera, the molten pool camera includes main casing, front cover assembly, focusing assembly, sensor board assembly, mainboard assembly, heat dissipation piece, BUC assembly, power board assembly and back cover, the focusing assembly is set in main casing, the front cover assembly is set on main casing and is located at the front end of focusing assembly, the sensor board assembly is fixed on focusing assembly, the heat dissipation piece is arranged between mainboard assembly and BUC assembly, the power board assembly is fixed on back cover, and the back cover is fixed on the back of main casing.

[0015] Preferably, the front cover assembly includes a front cover, a light guide and a laser lamp plate, and the light guide is fixed between the front cover and the laser lamp plate.

[0016] Preferably, the bottom of the main casing is further provided with an adapter block for expanding connection and installation of a carrier.

[0017] (III) Beneficial Effects

[0018] The utility model provides a focusing assembly and molten pool camera. Have following beneficial effects:

[0019] 1、 this focusing assembly and molten pool camera, compared with the adjustment mechanism of existing external, the application need not increase the installation adjustment mechanism outside the camera, no cost increase, do not rely on installation space, the focusing assembly is built -in in camera itself, convenient and simple operation, and after increasing lock of lock screw, the definition stability is better.

[0020] 2、 this focusing assembly and molten pool camera, focusing assembly size is small and exquisite, simple structure, convenient operation, combination fixed focus lens can be used, can adapt to molten pool camera of different size, the cooperation design of multiple head thread and fine tooth pitch thread can effectively guarantee the concentricity of focusing system, and the focusing precision is high, and the stability is good, effectively guarantee the definition of imaging.

[0021] 3、 this focusing assembly and molten pool camera, the focusing assembly of the application can realize lens focusing adjustment after installation, do not rely on installation size, adapt to a variety of installation environment, and do not need to adjust the installation position of camera in the focusing process, and the cost is lower, convenient operation, debugging is quick, the focusing precision is high, and the stability is good. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the explosion view of the molten pool camera of the utility model;

[0023] Figure 2 It is the focusing assembly schematic view of the utility model;

[0024] Figure 3 It is the focusing assembly sectional view of the utility model;

[0025] Figure 4 It is the focusing lens seat schematic view of the utility model;

[0026] Figure 5 It is the focusing ring front and back schematic view of the utility model;

[0027] Figure 6 It is the focusing fixed seat front and back schematic view of the utility model.

[0028] In the diagram: 1 Front cover, 2 Light guide, 3 Laser light plate, 4 Main housing, 5 Set screw, 6 Focusing assembly, 7 Sensor board assembly, 8 Mainboard assembly, 9 Heat sink, 10 BUC board assembly, 11 Power board assembly, 12 Rear cover, 13 Adapter block, 61 Lens, 62 Focusing ring, 63 Focusing lens mount, 64 Limiting rod, 65 Filter, 66 Focusing mounting base, 621 Focusing anti-slip groove, 622 Multi-start threaded hole, 623 Fine-pitch threaded shaft, 631 Lens mounting hole, 632 Glue groove, 633 Multi-start threaded shaft, 634 Limiting rod mounting hole, 635 Filter mounting hole, 661 Fine-pitch threaded hole, 662 Limiting groove. Detailed Implementation

[0029] This utility model provides a focusing component and a fused pool camera.

[0030] like Figure 1 As shown, the molten pool camera includes a main housing 4, a front cover assembly, a focusing assembly 6, a sensor board assembly 7, a main board assembly 8, a heat sink 9, a BUC assembly 10, a power board assembly 11, and a rear cover 12.

[0031] The focusing assembly 6 is housed within the main housing 4, and the front cover assembly is mounted on the main housing 4 at the front end of the focusing assembly 6. The front cover assembly includes a front cover 1, a light guide 2, and a laser light plate 3. The light guide 2 is used to diffuse the light spot angle of the fill light, thereby achieving a wider fill light range. The light guide 2 is fixed to the front cover 1 and the laser light plate 3 using glue or screws. The light guide 2 provides fill light to the laser light plate 3 without affecting the camera's appearance.

[0032] The sensor plate assembly 7 is fixed to the focusing assembly 6, which is located in the middle of the main housing 4. The sensor plate assembly 7, the focusing assembly 6, and the main housing 4 are typically fastened together with screws. The top of the main housing 4 has a cutout groove through which the focusing anti-slip groove 621 in the focusing assembly 6 can be exposed. By assembling the focusing assembly 6 as described below, the lens 61 can be moved relative to the sensor plate assembly 7 by moving the focusing anti-slip groove 621 outside the camera, thereby achieving camera focusing.

[0033] The main housing 4 of the fused pool camera is also equipped with a set screw 5. After the camera is focused, the focus ring 62 of the focusing assembly 6 can be locked by the set screw, which further ensures the stability of the entire optical system.

[0034] The heat sink 9 is located between the motherboard assembly 8 and the BUC assembly 10, and is then fixed inside the main housing 4 by screws or studs. The three components are in contact through a thermally conductive material, thereby ensuring the heat dissipation performance of the entire camera system.

[0035] The power board assembly 11 is fixed on the rear cover 12, and the rear cover 12 is fixed on the back of the main shell 4. The power board assembly 11 is provided with an interface related to the camera function, which is exposed outside through the interface hole of the rear cover 12, so as to realize the cable connection in actual use of the product; the rear cover 12 and the power board assembly 11 are fixed and combined into the rear cover assembly of the melt pool camera.

[0036] The bottom of the main shell 4 is further provided with an adapter block 13 for expanding the connection and installation carrier. The adapter block 13 is provided with threaded holes fixedly connected with the main shell 4 and threaded holes fixedly connected with the expansion, which are usually 1 / 4 inch, M6 threaded holes, etc. The adapter block 13 and the camera are fixed by screws, so that various expansion installation scenes of the camera can be realized.

[0037] As shown in Figures 2-6 The focusing assembly 6 includes a lens 61, a focusing ring 62, a focusing lens seat 63, and a focusing fixed seat 66. The lens 61 is arranged on the focusing lens seat 63. The focusing ring 62 is composed of an inner ring and an outer ring. The inner side of the inner ring of the focusing ring 62 is provided with a multi-start thread hole 622. The outer side of the focusing lens seat 63 is provided with a multi-start thread shaft 633 which is threadedly matched with the multi-start thread hole 622. The focusing ring 62 and the focusing lens seat 63 are threadedly connected through the multi-start thread, and can be screwed and unscrewed with each other.

[0038] The inner ring of the focusing fixed seat 66 is provided with a fine pitch thread hole 661. The outer side of the inner ring of the focusing ring 62 is provided with a fine pitch thread shaft 623 which is threadedly matched with the fine pitch thread hole 661. The focusing fixed seat 66 and the focusing ring 62 are connected through the fine pitch thread, and can be screwed and unscrewed with each other. The rotation direction of the fine pitch thread is opposite to that of the multi-start thread.

[0039] The focusing lens seat 63 and the focusing fixed seat 66 are axially slidably limited through the sliding assembly.

[0040] As shown in Figure 2 The sliding assembly includes at least one limiting rod 64. In the embodiment, two symmetrical limiting rods 64 are adopted, and the number is not limited to two. The side of the focusing lens seat 63 is provided with a limiting rod fixing hole 634 for accommodating the limiting rod 64. The focusing fixed seat 66 is provided with a limiting groove 662 for the axial sliding of the limiting rod 64. Due to the limitation of the limiting groove 662, when the focusing ring 62 is actuated, the focusing lens seat 63 drives the lens 61 to move axially, so as to realize the forward and backward movement of the lens 61 relative to the position of the sensor, and complete the focusing process.

[0041] The outer ring of the focusing ring 62 is provided with a focusing anti-skid groove 621. The focusing anti-skid groove 621 is convenient for focusing operation and improves the appearance effect.

[0042] The lens 61 is connected and fixed with the focusing lens seat 63 through thread or glue dispensing.

[0043] As Figure 6 shown, the connection between the lens 61 and the focusing lens seat 63 is embodiment one, the center of the focusing lens seat 63 is provided with a lens fixing hole 631, and the lens fixing hole 631 and the lens 61 are provided with mutually matched threads. The lens 61 can be connected and fixed with the focusing lens seat 63 in a threaded connection manner.

[0044] As Figure 6 shown, the connection between the lens 61 and the focusing lens seat 63 is embodiment two, the center of the focusing lens seat 63 is provided with a lens fixing hole 631, and the edges of the lens fixing hole 631 are provided with glue dispensing grooves 632 for dispensing glue. The lens 61 can be connected and fixed with the focusing lens seat 63 in a glue dispensing fixed manner.

[0045] The focusing assembly 6 further comprises a filter 65, and the focusing lens seat 63 is provided with a filter fixing hole 635 away from the lens 61, and the filter 65 can be fixed in the filter fixing hole 635 through glue dispensing. The lens moves forward and backward during the focusing process, thereby ensuring the optical effect of the camera.

[0046] The focusing movement mechanisms in the focusing assembly 6 are all connected through threads, which can well ensure the concentricity between the parts, and then the limiting rods 64 are used to limit the axial movement only, thereby realizing the focusing function. Compared with the direct external support focusing mechanism, the stability and concentricity are better.

[0047] 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 these 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 focusing assembly, characterized in that: The focusing assembly (6) includes a lens (61), a focusing ring (62), a focusing lens mount (63), and a focusing fixing seat (66). The lens (61) is mounted on the focusing lens mount (63). The focusing ring (62) consists of an inner ring and an outer ring. The inner ring of the focusing ring (62) has a multi-threaded hole (622) on its inner side. The lens mount (63) has a multi-threaded shaft (633) on its outer side that is adapted to the thread of the multi-threaded hole (622). The inner ring of the focusing fixing seat (66) has a fine-pitch threaded hole (661). The outer side of the inner ring of the focusing ring (62) has a fine-pitch threaded shaft (623) that is adapted to the thread of the fine-pitch threaded hole (661). The fine-pitch thread and the multi-threaded thread have opposite directions of rotation. The focusing lens mount (63) and the focusing fixing seat (66) are axially slidably limited by a sliding assembly.

2. A focusing assembly according to claim 1, characterized in that: The sliding assembly includes at least one limiting rod (64), the side of the focusing lens mount (63) is provided with a limiting rod fixing hole (634) for accommodating the limiting rod (64), and the focusing mounting base (66) is provided with a limiting groove (662) for the limiting rod (64) to slide axially.

3. A focusing assembly according to claim 1, characterized in that: The outer ring of the focusing ring (62) is provided with a focusing anti-slip groove (621).

4. A focusing assembly according to claim 1, characterized in that: The lens (61) is connected and fixed to the focusing lens mount (63) by means of thread or adhesive.

5. A focusing assembly according to claim 4, characterized in that: The focusing lens mount (63) has a lens fixing hole (631) at its center, and the lens (61) and the lens fixing hole (631) are provided with mutually compatible threads.

6. A focusing assembly according to claim 4, characterized in that: The focusing lens mount (63) has a lens fixing hole (631) at its center, and glue dispensing grooves (632) for dispensing glue are provided on both sides of the edge of the lens fixing hole (631).

7. A focusing assembly according to claim 1, characterized in that: The focusing assembly (6) also includes a filter (65). The focusing lens mount (63) has a filter fixing hole (635) on the side away from the lens (61). The filter (65) can be fixed in the filter fixing hole (635) by dispensing adhesive.

8. A molten pool camera, wherein the molten pool camera employs the focusing assembly of any one of claims 1-7, characterized in that: The molten pool camera includes a main housing (4), a front cover assembly, a focusing assembly (6), a sensor board assembly (7), a main board assembly (8), a heat sink (9), a BUC assembly (10), a power board assembly (11), and a rear cover (12). The focusing assembly (6) is disposed inside the main housing (4). The front cover assembly is disposed on the main housing (4) at the front end of the focusing assembly (6). The sensor board assembly (7) is fixed on the focusing assembly (6). The heat sink (9) is disposed between the main board assembly (8) and the BUC assembly (10). The power board assembly (11) is fixed on the rear cover (12). The rear cover (12) is fixed on the back of the main housing (4).

9. A molten pool camera according to claim 8, characterized in that: The front cover assembly includes a front cover (1), a light guide (2), and a laser light plate (3), wherein the light guide (2) is fixed between the front cover (1) and the laser light plate (3).

10. A molten pool camera according to claim 8, characterized in that: The bottom of the main housing (4) is also provided with an adapter block (13) for extending the connection to the mounting carrier.

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