An electric cylinder controlled automatic focusing device

Abstract

The application discloses an electric cylinder controlled automatic focusing device, which comprises an electric cylinder, an adapter plate, a frame assembly and a lens, wherein the electric cylinder is in transmission connection with the adapter plate, the frame assembly is fixedly connected with the adapter plate through an adjusting assembly, and the lens is arranged in the frame assembly; the adjusting assembly comprises a cam, a guide adjusting block and two first fasteners; the adapter plate is provided with a first guide groove and two threaded holes which are transversely communicated with each other, the guide adjusting block is arranged in the first guide groove, the two first fasteners are respectively arranged in the two threaded holes, and the two first fasteners are respectively in abutment with two sides of the guide adjusting block; the frame assembly is provided with a mounting hole and a second guide groove which are sequentially and mutually communicated in up-down direction, the top of the guide adjusting block extends into the second guide groove, the cam is arranged in the mounting hole and extends into the guide adjusting block. The electric cylinder controlled automatic focusing device has the advantages of simple overall structure, small size, light weight, good ease of use and good maintainability.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and more particularly to an automatic focusing device controlled by an electric cylinder. Background Technology

[0002] Currently, most automatic focusing drives for laser cutting heads are combinations of servo motors and ball screws, servo motors and guide rails, linear motors, etc. These drive structures are generally large in size, making it difficult to achieve a regular and compact shape, and they are generally heavy. For some applications with tight space and low load capacity, these large automatic focusing devices cannot be used. Meanwhile, existing focusing structures lack coaxial adjustment mechanisms, which increases the machining accuracy and difficulty of each part. In some high-precision machining fields, where coaxiality requirements are very high, focusing devices without coaxial adjustment mechanisms are basically unusable. Summary of the Invention

[0003] To address the aforementioned problems in existing laser cutting methods, this paper aims to provide an automatic focusing device controlled by an electric cylinder. This device features a simple overall structure, small size, light weight, ease of use, and good maintainability, making it suitable for applications with limited space and low load capacity. Furthermore, its coaxial adjustability reduces the difficulty and accuracy of part processing. It can also be used in high-precision machining fields where coaxiality is critical.

[0004] The specific technical solution is as follows: An automatic focusing device controlled by an electric cylinder includes: an electric cylinder, an adapter plate, a frame assembly, and a lens. The electric cylinder is pulsatorically connected to the adapter plate, the frame assembly is fixedly connected to the adapter plate via an adjustment assembly, and the lens is disposed within the frame assembly. The adjustment assembly includes: a cam, a guide adjustment block, and two first fasteners; The adapter plate is provided with a first guide groove and two threaded holes that are horizontally interconnected. The guide adjustment block is located in the first guide groove. The two first fasteners are respectively installed in the two threaded holes. The two first fasteners abut against the two sides of the guide adjustment block to adjust the position of the frame assembly in the first direction. The eyeglass frame assembly has mounting holes and a second guide groove that are connected vertically. The second guide groove is directly opposite the first guide groove. The top of the guide adjustment block extends into the second guide groove. The cam is installed in the mounting hole and extends into the guide adjustment block. The cam is used to adjust the position of the eyeglass frame assembly in a second direction, where the first direction is perpendicular to the second direction.

[0005] In the aforementioned electric cylinder-controlled automatic focusing device, the lens frame assembly has a through hole, the top of the cam has an adjustment groove, and the through hole is directly opposite the adjustment groove.

[0006] In the aforementioned electric cylinder-controlled automatic focusing device, the lens frame assembly and the adapter plate are fixedly connected by at least two second fasteners.

[0007] In the aforementioned electric cylinder-controlled automatic focusing device, the cam includes a first adjusting part and a second adjusting part connected sequentially from top to bottom. Both the first adjusting part and the second adjusting part are cylindrical. The central axis of the first adjusting part is parallel to and does not coincide with the central axis of the second adjusting part. The first adjusting part is installed in the mounting hole, and the second adjusting part is located in the guide adjusting block.

[0008] In the aforementioned electric cylinder-controlled automatic focusing device, the adjusting groove is located at the top of the first adjusting part, and the adjusting groove coincides with the central axis of the first adjusting part.

[0009] The aforementioned electric cylinder-controlled automatic focusing device, wherein the lens frame assembly includes: Lens assembly bracket, wherein the lens assembly bracket is fixedly connected to the adapter plate by screws, and the lens is installed inside the lens assembly bracket; A pressure ring is provided on the lens assembly support.

[0010] The aforementioned electric cylinder-controlled automatic focusing device further includes a spacer ring, which abuts against the pressure ring and the lens.

[0011] In the aforementioned electric cylinder-controlled automatic focusing device, the lens assembly support is a hollow structure that extends vertically through the lens assembly support. The top of the lens assembly support has an annular groove that communicates with its interior. The bottom of the lens assembly support has a retaining ring. The bottom outer periphery of the lens is limited and matched with the retaining ring. The outer periphery of the spacer is located within the annular groove, and the inner periphery of the spacer is limited and matched with the top outer periphery of the lens.

[0012] In the aforementioned electric cylinder-controlled automatic focusing device, the pressure ring is fixedly connected to the lens assembly bracket by at least three screws.

[0013] In the aforementioned electric cylinder-controlled automatic focusing device, the adapter plate includes a first mounting plate and a second mounting plate connected to each other. The electric cylinder is throttle-connected to the first mounting plate, and the second mounting plate is connected to the lens assembly bracket. The first mounting plate and the second mounting plate are arranged perpendicularly.

[0014] The positive effects of the above technical solution compared with the existing technology are: The invention has a simple overall structure, small size, light weight, and good ease of use and maintainability. It is suitable for applications with compact space and low load capacity. At the same time, it is coaxially adjustable, which reduces the difficulty and accuracy of part processing. It can also be used in high-precision machining fields with high coaxial requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an automatic focusing device controlled by an electric cylinder according to the present invention. Figure 2 This is a longitudinal sectional view of the overall structure of an automatic focusing device controlled by an electric cylinder according to the present invention. Figure 3 This invention relates to an automatic focusing device controlled by an electric cylinder. Figure 2 Cross-sectional view along the BB direction; In the attached drawings: 1. Electric cylinder; 2. Adapter plate; 3. Frame assembly; 4. Lens; 5. Adjustment assembly; 21. First mounting plate; 22. Second mounting plate; 31. Lens assembly bracket; 32. Pressure ring; 33. Screw; 34. Spacer; 35. Ring groove; 36. Retaining ring; 37. Screw; 51. Cam; 52. Guide adjustment block; 53. First fastener; 54. First guide groove; 55. Threaded hole; 56. Mounting hole; 57. Second guide groove; 58. Through hole; 59. Adjustment groove; 511. First adjustment part; 512. Second adjustment part; Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of an automatic focusing device controlled by an electric cylinder according to the present invention. Figure 2 This is a longitudinal sectional view of the overall structure of an automatic focusing device controlled by an electric cylinder according to the present invention. Figure 3 This invention relates to an automatic focusing device controlled by an electric cylinder. Figure 2 A cross-sectional view along the BB direction, such as Figures 1 to 3 As shown, a preferred embodiment of an electric cylinder-controlled autofocus device is illustrated, comprising: an electric cylinder 1, an adapter plate 2, a frame assembly 3, and a lens 4. The electric cylinder 1 is operatively connected to the adapter plate 2, the frame assembly 3 is fixedly connected to the adapter plate 2 via an adjustment component 5, and the lens 4 is disposed within the frame assembly 3.

[0018] Furthermore, as a preferred embodiment, the adjustment component 5 includes: a cam 51, a guide adjustment block 52, and two first fasteners 53.

[0019] Furthermore, as a preferred embodiment, the adapter plate 2 is provided with a first guide groove 54 and two threaded holes 55 that are horizontally interconnected. The guide adjustment block 52 is disposed in the first guide groove 54, and two first fasteners 53 are respectively installed in the two threaded holes 55. The two first fasteners 53 abut against the two sides of the guide adjustment block 52 respectively, for adjusting the position of the frame assembly 3 in the first direction.

[0020] Furthermore, as a preferred embodiment, the frame assembly 3 has mounting holes 56 and a second guide groove 57 that are connected vertically in sequence. The second guide groove 57 is directly opposite to the first guide groove 54. The top of the guide adjustment block 52 extends into the second guide groove 57. The cam 51 is installed in the mounting hole 56 and extends into the guide adjustment block 52. The cam 51 is used to adjust the position of the frame assembly 3 in a second direction, where the first direction is perpendicular to the second direction.

[0021] Furthermore, as a preferred embodiment, the frame assembly 3 has a through hole 58, and the top of the cam 51 has an adjustment groove 59, with the through hole 58 and the adjustment groove 59 facing each other.

[0022] Furthermore, as a preferred embodiment, the frame assembly 3 and the adapter plate 2 are fixedly connected by at least two second fasteners.

[0023] Preferably, both the first fastener 53 and the second fastener are screws.

[0024] Furthermore, in a preferred embodiment, the cam 51 includes a first adjusting part 511 and a second adjusting part 512 connected in sequence from top to bottom. Both the first adjusting part 511 and the second adjusting part 512 are cylindrical. The central axis of the first adjusting part 511 is parallel to and does not coincide with the central axis of the second adjusting part 512. The first adjusting part 511 is installed in the mounting hole 56, and the second adjusting part 512 is disposed in the guide adjusting block 52.

[0025] Furthermore, in a preferred embodiment, the adjustment groove 59 is located at the top of the first adjustment part 511, and the adjustment groove 59 coincides with the central axis of the first adjustment part 511.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0027] In addition to the above, the present invention also has the following embodiments: In further embodiments of the present invention, please continue to refer to Figures 1 to 3 As shown, the frame assembly 3 includes a lens bracket 31 and a pressure ring 32. The lens bracket 31 is fixedly connected to the adapter plate 2 by screws 33. The lens 4 is installed inside the lens bracket 31, and the pressure ring 32 is located on the lens bracket 31.

[0028] In a further embodiment of the present invention, the frame assembly 3 further includes a spacer 34, which abuts against the pressure ring 32 and the lens 4.

[0029] In a further embodiment of the present invention, the lens assembly support 31 is a hollow structure that runs vertically through the lens assembly support 31. The top of the lens assembly support 31 has an annular groove 35 that communicates with its interior. The bottom of the lens assembly support 31 has a retaining ring 36. The bottom outer periphery of the lens 4 is limited and matched with the retaining ring 36. The outer periphery of the spacer 34 is disposed in the annular groove 35. The inner periphery of the spacer 34 is limited and matched with the top outer periphery of the lens 4.

[0030] In a further embodiment of the present invention, the pressure ring 32 is fixedly connected to the lens assembly bracket 31 by at least three screws 37.

[0031] In a further embodiment of the present invention, the adapter plate 2 includes a first mounting plate 21 and a second mounting plate 22 connected to each other. The electric cylinder 1 is connected to the first mounting plate 21 in a transmission manner, and the second mounting plate 22 is connected to the lens assembly bracket 31. The first mounting plate 21 and the second mounting plate 22 are arranged perpendicularly.

[0032] This invention uses a miniature cylinder as the drive, and the electric cylinder has its own guide mechanism. The transmission structure and the guide mechanism are integrated, resulting in a compact structure.

[0033] In this invention, the electric cylinder slider and the adapter plate are connected by screws, and the adjustment of the first direction is achieved by adjusting the first fastener 53.

[0034] The lens assembly support 31 of the present invention is connected to the adapter plate 2 by screws, and the second direction adjustment is achieved by adjusting the cam 51.

[0035] The invention has a simple and compact overall structure, which greatly reduces the size and weight of the autofocus laser cutting head, making it suitable for low-load robots and other process equipment to hold the laser cutting head for laser processing.

[0036] This invention features coaxial adjustment, which reduces the difficulty and accuracy of part processing; it can also be used in high-precision machining fields where coaxiality is a critical requirement.

[0037] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic focusing device controlled by an electric cylinder, characterized in that, include: The system includes an electric cylinder, an adapter plate, a frame assembly, and a lens. The electric cylinder is connected to the adapter plate via a drive mechanism. The frame assembly is fixedly connected to the adapter plate via an adjustment mechanism. The lens is disposed within the frame assembly. The adjustment assembly includes: a cam, a guide adjustment block, and two first fasteners; The adapter plate is provided with a first guide groove and two threaded holes that are horizontally interconnected. The guide adjustment block is located in the first guide groove. The two first fasteners are respectively installed in the two threaded holes. The two first fasteners abut against the two sides of the guide adjustment block to adjust the position of the frame assembly in the first direction. The eyeglass frame assembly has mounting holes and a second guide groove that are connected vertically. The second guide groove is directly opposite the first guide groove. The top of the guide adjustment block extends into the second guide groove. The cam is installed in the mounting hole and extends into the guide adjustment block. The cam is used to adjust the position of the eyeglass frame assembly in a second direction, where the first direction is perpendicular to the second direction. The cam includes a first adjustment part and a second adjustment part connected in sequence from top to bottom. Both the first adjustment part and the second adjustment part are cylindrical. The central axis of the first adjustment part is parallel to and does not coincide with the central axis of the second adjustment part. The first adjustment part is installed in the mounting hole, and the second adjustment part is located in the guide adjustment block.

2. The automatic focusing device controlled by an electric cylinder according to claim 1, characterized in that, The frame assembly has a through hole, and the top of the cam has an adjustment groove, with the through hole and the adjustment groove directly opposite each other.

3. The automatic focusing device controlled by an electric cylinder according to claim 2, characterized in that, The frame assembly and the adapter plate are fixedly connected by at least two second fasteners.

4. The automatic focusing device controlled by an electric cylinder according to claim 3, characterized in that, The adjustment groove is located at the top of the first adjustment part, and the adjustment groove coincides with the central axis of the first adjustment part.

5. The automatic focusing device controlled by an electric cylinder according to claim 1, characterized in that, The frame assembly includes: Lens assembly bracket, wherein the lens assembly bracket is fixedly connected to the adapter plate by screws, and the lens is installed inside the lens assembly bracket; A pressure ring is provided on the lens assembly support.

6. The automatic focusing device controlled by an electric cylinder according to claim 5, characterized in that, The frame assembly further includes a spacer ring, which abuts against the pressure ring and the lens.

7. The automatic focusing device controlled by an electric cylinder according to claim 6, characterized in that, The lens assembly support is a hollow structure that runs vertically through the lens assembly. The top of the lens assembly support has an annular groove that communicates with its interior. The bottom of the lens assembly support has a retaining ring. The bottom outer periphery of the lens is matched with the retaining ring for limiting. The outer periphery of the spacer is located within the annular groove, and the inner periphery of the spacer is matched with the top outer periphery of the lens for limiting.

8. The automatic focusing device controlled by an electric cylinder according to claim 5, characterized in that, The pressure ring is fixedly connected to the lens assembly bracket by at least three screws.

9. The automatic focusing device controlled by an electric cylinder according to claim 5, characterized in that, The adapter plate includes a first mounting plate and a second mounting plate that are connected to each other. The electric cylinder is connected to the first mounting plate in a driving connection. The second mounting plate is connected to the lens assembly bracket. The first mounting plate and the second mounting plate are arranged perpendicularly.

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