Integrated scanning galvanometer support with embedded metal inner support

Abstract

The utility model discloses an integrated scanning galvanometer support embedded with a metal inner support, which comprises an upper plastic shell and a lower shell assembly, the upper plastic shell covers the lower shell assembly to form a closed shell, the lower shell assembly comprises a lower plastic shell and a metal inner support, the lower plastic shell is provided with a light inlet hole and a light outlet hole on adjacent surfaces, and the metal inner support is arranged on the lower plastic shell. The metal inner support comprises a light inlet face and a light outlet face which correspond to the light inlet hole and the light outlet hole, the light inlet face extends out of the light inlet hole and protrudes out of the lower plastic shell, and the light outlet face extends out of the light outlet hole and protrudes out of the lower plastic shell. The problem that in the prior art, cost is high or assembling is tedious is solved, and the beneficial effects of improving production efficiency and reducing cost are achieved.

Description

Technical Field

[0001] This application relates to the field of scanning galvanometer technology, specifically to a scanning galvanometer bracket with an integrated embedded metal support. Background Technology

[0002] Currently, the laser scanning galvanometer market mainly offers two support solutions. One is an all-metal support, but its processing and material costs are quite high. The other combines a metal inner support with a plastic outer shell. The metal inner support is mainly used to position and fix the main components, while the plastic outer shell only serves a decorative and encasing function. These two components need to be connected through a series of positioning and fixing parts, such as standard connectors for the main components, and the light-incoming surface also requires the assembly of a light-incoming plate 23. In addition, internal stress can exist between the inner support and the shell, leading to cracking. A smooth transition between the metal and the inner support is necessary to prevent cracking. This type of solution has high assembly costs and a cumbersome assembly process, requiring the tightening of numerous fixing screws, resulting in low production efficiency. At the same time, various processing problems can easily lead to difficulties in achieving the required assembly accuracy. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this application provides a scanning galvanometer holder with an integrated embedded metal support, thereby solving the problems of high cost or cumbersome assembly in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A scanning galvanometer holder with an integrated embedded metal inner support includes an upper plastic housing and a lower housing assembly. The upper plastic housing covers the lower housing assembly to form a closed housing. The lower housing assembly includes a lower plastic housing and a metal inner support. The lower plastic housing includes an entrance hole and an exit hole on adjacent surfaces. The metal inner support includes an entrance surface and an exit surface corresponding to the entrance hole and the exit hole. The entrance surface extends out of the entrance hole and protrudes from the lower plastic housing, and the exit surface extends out of the exit hole and protrudes from the lower plastic housing. The metal inner support is integrally injection molded with the lower plastic housing as an insert to form the lower housing assembly.

[0006] Preferably, the light-incident surface and the light-exit surface of the metal inner support are perpendicular.

[0007] Preferably, the bottom wall of the light-emitting surface of the metal inner support is provided with a stop groove perpendicular to the light-emitting surface.

[0008] Preferably, the side of the light-incident surface of the metal inner support is provided with a stop groove parallel to the light-incident surface.

[0009] Preferably, the metal inner support is made of aluminum alloy.

[0010] Preferably, the upper plastic shell is made of a PC+ABS mixture.

[0011] Preferably, the lower plastic shell is made of a PC+ABS mixture.

[0012] Preferably, the aluminum alloy surface is sandblasted and oxidized or electrophoretically sprayed with oil.

[0013] Preferably, the outer surfaces of the upper and lower plastic housings are painted.

[0014] Preferably, the four corners of the light-incident surface of the metal inner support are rounded.

[0015] Compared to existing technologies, this solution offers the following advantages: This application features an optimized design that integrates multiple structural functions into the entire component unit. The principle is to fabricate the inner metal support and outer plastic shell as a single, embedded metal support. This retains the functionality of the original inner metal support and plastic shell while reducing the number of components, optimizing the operational process, improving production efficiency, and lowering overall costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present application showing the upper plastic shell and the lower shell assembly separated;

[0017] Figure 2 This is a bottom view schematic diagram of an embodiment of this application;

[0018] Figure 3 This is a side view of one side of the light-incident surface according to an embodiment of this application;

[0019] Figure 4 This is a front view schematic diagram of an embodiment of this application;

[0020] Figure 5 This is a cross-sectional view of the lower shell assembly according to an embodiment of this application;

[0021] Figure 6 This is a structural schematic diagram of the lower shell assembly from a cut viewpoint according to an embodiment of this application;

[0022] Figure 7 This is a three-dimensional structural diagram of a metal internal support according to an embodiment of this application;

[0023] Figure 8 This is a schematic diagram of existing technology;

[0024] Among them, 1-upper plastic shell, 2-lower shell assembly, 21-lower plastic shell, 22-metal inner support, 221-light-incident surface, 222-light-exit surface, 223-stop groove, 224-rounded chamfer, 23-light-incident plate. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] This embodiment provides a technical solution: a scanning galvanometer bracket with an integrated embedded metal inner support, comprising an upper plastic shell 1 and a lower shell assembly 2. The upper plastic shell 1 covers the lower shell assembly 2 to form a closed shell. The lower shell assembly 2 includes a lower plastic shell 21 and a metal inner support 22. The metal inner support 22 ensures positioning accuracy, reliability, and heat dissipation. The lower plastic shell 21 includes light entrance holes and light exit holes on adjacent surfaces. The metal inner support 22 includes a light entrance surface 221 and a light exit surface 222 corresponding to the light entrance holes and light exit holes. The light entrance surface 221 extends out of the light entrance hole and protrudes from the lower plastic shell 21, and the light exit surface 222 extends out of the light exit hole and protrudes from the lower plastic shell 21. The metal inner support 22, as an insert, is integrally injection molded with the lower plastic shell 21 to form the lower shell assembly 2. This solution uses a method of injection molding the metal inner support 22 and the lower plastic shell together to obtain an integral scanning galvanometer bracket. The critical dimensions of the metal inner support 22 are all CNC machined, thus ensuring high precision. In this structure, the incident surface 221 connects to the laser, and the exit surface 222 connects to the field lens, with both protruding from the lower plastic housing 21. Since the lower plastic housing 21 does not participate in positioning, there is no issue of inaccurate positioning due to plastic involvement. The lower plastic housing 21 only serves to enclose the outer components. By combining the plastic housing with a painting process, different color options can be met, increasing customer choice. This ensures the overall precision of the galvanometer, facilitates assembly, saves assembly time, and ultimately reduces costs.

[0027] In this embodiment, the lower plastic housing 21 and the metal inner support 22 are integrated using a one-piece embedded metal inner support process, and the connecting part between the lower plastic housing 21 and the metal inner support 22 is eliminated, thereby reducing the cumbersome assembly process and ensuring assembly accuracy. This approach ensures both lower cost and meets usage requirements.

[0028] In this embodiment, the light-incident surface 221 and the light-exit surface 222 of the metal inner support 22 are perpendicular, which ensures better sealing of the plastic mold during injection molding and prevents excess glue from overflowing onto the positioning surface and thus damaging the positioning. When using the existing split structure, it is impossible to insert the light-incident surface 221 and the light-exit surface 222 into the housing at the same time and make them protrude from the surface, so additional parts are added and assembly processes and costs are increased.

[0029] To prevent the lower plastic housing 21 and the metal inner support 22 from rotating after injection molding, a stop groove 223 is added at the insert position of the light-incident surface 221 and the light-exit surface 222 to prevent rotation of the metal parts during assembly or application of force. In this embodiment, a stop groove 223 perpendicular to the light-exit surface 222 is provided on the bottom wall of the light-exit surface 222 of the metal inner support 22, and a stop groove 223 parallel to the light-incident surface 221 is provided on the side of the light-incident surface 221 of the metal inner support 22.

[0030] To address the issue of internal stress between the insert injection-molded metal inner support 22 and the lower plastic shell 21, which can lead to cracking, this embodiment employs a smooth transition between the metal inner support 22 and the lower plastic shell 21 to prevent cracking. For example, rounded chamfers 224 are used at the four corners of the light-receiving surface 221.

[0031] In this embodiment, the metal inner support 22 is made of aluminum alloy, and the aluminum alloy surface is sandblasted and oxidized or electrophoretically sprayed with oil. The upper plastic shell 1 and the lower plastic shell 21 are made of PC+ABS mixture and painted on the outer surface, so that the appearance can be diversified.

[0032] In the description of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] The above description is only a preferred embodiment of the present solution, but the scope of protection claimed by the present solution is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and inventive concept of this application, should be included within the scope of protection of this application.

Claims

1. A scanning galvanometer holder with an integrated embedded metal inner support, comprising an upper plastic shell (1) and a lower shell assembly (2), wherein the upper plastic shell (1) covers the lower shell assembly (2) to form a closed shell, characterized in that: The lower shell assembly (2) includes a lower plastic shell (21) and a metal inner support (22). The lower plastic shell (21) is provided with light entrance holes and light exit holes on adjacent surfaces. The metal inner support (22) includes a light entrance surface (221) and a light exit surface (222) corresponding to the light entrance holes and light exit holes. The light entrance surface (221) extends out of the light entrance hole and protrudes from the lower plastic shell (21). The light exit surface (222) extends out of the light exit hole and protrudes from the lower plastic shell (21). The metal inner support (22) is integrally injection molded with the lower plastic shell (21) as an insert to form the lower shell assembly (2).

2. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The light-incident surface (221) and the light-exit surface (222) of the metal inner support (22) are perpendicular.

3. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 2, characterized in that: The bottom wall of the light-emitting surface (222) of the metal inner support (22) is provided with a stop groove (223) that is perpendicular to the light-emitting surface (222).

4. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The side of the light-incident surface (221) of the metal inner support (22) is provided with a stop groove (223) parallel to the light-incident surface (221).

5. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The metal internal support (22) is made of aluminum alloy.

6. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The upper plastic shell (1) is made of PC+ABS mixture.

7. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The lower plastic shell (21) is made of PC+ABS compound.

8. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 5, characterized in that: The aluminum alloy surface is either sandblasted and oxidized or electrophoretically sprayed with oil.

9. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The outer surfaces of the upper plastic shell (1) and the lower plastic shell (21) are painted.

10. The scanning galvanometer holder with an integrated embedded metal inner support according to claim 1, characterized in that: The four corners of the light-incident surface (221) of the metal inner support (22) are rounded (224).

Images